images.json

{
  "images":[
    {
      "src": "https://sgouros.com/nasa/testimage.png",
      "title": "Test image",
      "description": "Test image",
      "url": "https://sgouros.com/nasa/testimage",
      "id": "622",
      "layers": [
        {
          "src": "https://sgouros.com/nasa/testimage.png",
          "id": "622_xray",
          "layer": "xray"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/mgb2016/mgb2016.jpg",
      "title":"MG B2016+112",
      "description":"A single or pair of growing supermassive black holes located 11.8 billion light-years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2021/mgb2016",
      "id":"0",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/mgb2016/mgb2016_xray.jpg",
          "id":"0_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/mgb2016/mgb2016_illus.jpg",
          "id":"0_illus",
          "layer":"illus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/v404cyg/v404cyg.jpg",
      "title":"V404 Cygni",
      "description":"A binary system including a black hole about 7,800 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2021/v404cyg",
      "id":"1",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/v404cyg/v404cyg_xray.jpg",
          "id":"1_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/v404cyg/v404cyg_optical_ir.jpg",
          "id":"1_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/v404cyg/v404cyg_inset.jpg",
          "id":"1_inset",
          "layer":"inset"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/v404cyg/v404cyg_rings.jpg",
          "id":"1_rings",
          "layer":"rings"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/v404cyg/v404cyg_illus.jpg",
          "id":"1_illus",
          "layer":"illus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/a1775/a1775.jpg",
      "title":"Abell 1775",
      "description":"A galaxy cluster located about 960 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2021/a1775",
      "id":"2",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/a1775/a1775_xray.jpg",
          "id":"2_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/a1775/a1775_optical_ir.jpg",
          "id":"2_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/a1775/a1775_radio.jpg",
          "id":"2_radio",
          "layer":"radio"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/nclump/nclump.jpg",
      "title":"Northern Clump",
      "description":"A cluster of galaxies located about 690 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2021/nclump",
      "id":"3",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/nclump/nclump_comp.jpg",
          "id":"3_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/nclump/nclump_xray.jpg",
          "id":"3_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/nclump/nclump_xray_chandra.jpg",
          "id":"3_chandra",
          "layer":"chandra"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/nclump/nclump_xray_xmm.jpg",
          "id":"3_xmm",
          "layer":"xmm"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/nclump/nclump_optical_ir.jpg",
          "id":"3_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/nclump/nclump_radio.jpg",
          "id":"3_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/nclump/nclump_sidebyside.jpg",
          "id":"3_sidebyside",
          "layer":"sidebyside"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/msh1552/msh1552.jpg",
      "title":"MSH 15-52",
      "description":"The remains of a supernova in our galaxy.",
      "url":"https://chandra.harvard.edu/photo/2021/msh1552",
      "id":"4",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/msh1552/msh1552_2009.jpg",
          "id":"4_2009",
          "layer":"2009"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/msh1552/msh1552_2004_boxes.jpg",
          "id":"4_boxes",
          "layer":"boxes"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/msh1552/msh1552_2004.jpg",
          "id":"4_2004",
          "layer":"2004"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/msh1552/msh1552_2008_boxes.jpg",
          "id":"4_boxes",
          "layer":"boxes"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/msh1552/msh1552_2008.jpg",
          "id":"4_2008",
          "layer":"2008"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/msh1552/msh1552_2018_boxes.jpg",
          "id":"4_boxes",
          "layer":"boxes"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/msh1552/msh1552_2018.jpg",
          "id":"4_2018",
          "layer":"2018"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/superflares/superflares.jpg",
      "title":"Super Flares",
      "description":"Two star-forming regions in the Milky Way galaxy at 4,400 and 5,500 light years away respectively.",
      "url":"https://chandra.harvard.edu/photo/2021/superflares",
      "id":"5",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/superflares/superflares_m8.jpg",
          "id":"5_m8",
          "layer":"m8"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/superflares/superflares_m8_bwy.jpg",
          "id":"5_bwy",
          "layer":"bwy"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/superflares/superflares_m8_xray.jpg",
          "id":"5_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/superflares/superflares_m8_ir.jpg",
          "id":"5_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/superflares/superflares_rcw120.jpg",
          "id":"5_rcw120",
          "layer":"rcw120"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/superflares/superflares_rcw120_bwy.jpg",
          "id":"5_bwy",
          "layer":"bwy"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/superflares/superflares_rcw120_xray.jpg",
          "id":"5_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/superflares/superflares_rcw120_ir.jpg",
          "id":"5_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/gcenter/gcenter.jpg",
      "title":"Galactic Center",
      "description":"A new survey extending about 700 light years above and below the center of the Milky Way.",
      "url":"https://chandra.harvard.edu/photo/2021/gcenter",
      "id":"6",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/gcenter/gcenter_xray.jpg",
          "id":"6_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/gcenter/gcenter_meerkat.jpg",
          "id":"6_meerkat",
          "layer":"meerkat"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/gcenter/gcenter_1color_comp.jpg",
          "id":"6_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/gcenter/gcenter_1color_xray.jpg",
          "id":"6_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/gcenter/gcenter_1color_meerkat.jpg",
          "id":"6_meerkat",
          "layer":"meerkat"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/gcenter/gcenter_g0.17-0.41_comp.jpg",
          "id":"6_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/gcenter/gcenter_g0.17-0.41_xray.jpg",
          "id":"6_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/gcenter/gcenter_g0.17-0.41_meerkat.jpg",
          "id":"6_meerkat",
          "layer":"meerkat"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/ic443/ic443.jpg",
      "title":"IC 443",
      "description":"A supernova remnant located about 5,000 light years from Earth",
      "url":"https://chandra.harvard.edu/photo/2021/ic443",
      "id":"7",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/ic443/ic443_sketchfab.jpg",
          "id":"7_sketchfab",
          "layer":"sketchfab"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/ic443/ic443_voyager.jpg",
          "id":"7_voyager",
          "layer":"voyager"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/casa/casa.jpg",
      "title":"Cassiopeia A",
      "description":"A supernova remnant located about 11,000 light years away.",
      "url":"https://chandra.harvard.edu/photo/2021/casa",
      "id":"8",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/casa/casa_ti.jpg",
          "id":"8_ti",
          "layer":"ti"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/casa/casa_simg.jpg",
          "id":"8_simg",
          "layer":"simg"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/casa/casa_fe.jpg",
          "id":"8_fe",
          "layer":"fe"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/casa/casa_o.jpg",
          "id":"8_o",
          "layer":"o"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/casa/casa_optical.jpg",
          "id":"8_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/m87/m87.jpg",
      "title":"M87",
      "description":"A galaxy with a supermassive black hole at its center located about 55 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2021/m87",
      "id":"9",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_wavelengths_wide.jpg",
          "id":"9_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_wavelengths_long.jpg",
          "id":"9_long",
          "layer":"long"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_cxo_hst_alma_comp.jpg",
          "id":"9_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_eht.jpg",
          "id":"9_eht",
          "layer":"eht"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_gmva_86ghz.jpg",
          "id":"9_86ghz",
          "layer":"86ghz"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_vlba_43ghz.jpg",
          "id":"9_43ghz",
          "layer":"43ghz"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_mwl_22ghz.jpg",
          "id":"9_22ghz",
          "layer":"22ghz"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_evn.jpg",
          "id":"9_evn",
          "layer":"evn"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_alma.jpg",
          "id":"9_alma",
          "layer":"alma"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_hubble_optical.jpg",
          "id":"9_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_swift_optical_439nm.jpg",
          "id":"9_439nm",
          "layer":"439nm"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_swift_uv_250nm.jpg",
          "id":"9_250nm",
          "layer":"250nm"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_chandra.jpg",
          "id":"9_chandra",
          "layer":"chandra"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_nustar.jpg",
          "id":"9_nustar",
          "layer":"nustar"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_hess_gamma.jpg",
          "id":"9_gamma",
          "layer":"gamma"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/m87/m87_fermi_1000gev.jpg",
          "id":"9_1000gev",
          "layer":"1000gev"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/uranus/uranus.jpg",
      "title":"Uranus",
      "description":"The seventh planet from the Sun in our Solar System.",
      "url":"https://chandra.harvard.edu/photo/2021/uranus",
      "id":"10",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/uranus/uranus_xray.jpg",
          "id":"10_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/uranus/uranus_optical.jpg",
          "id":"10_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/uranus/uranus_hrc.jpg",
          "id":"10_hrc",
          "layer":"hrc"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/uranus/uranus_hrc_xray.jpg",
          "id":"10_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/uranus/uranus_hrc_ir.jpg",
          "id":"10_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/uranus/uranus_vlt_hrc.jpg",
          "id":"10_hrc",
          "layer":"hrc"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/jet/jet.jpg",
      "title":"PJ352-15",
      "description":"A quasar located about 12.7 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2021/jet",
      "id":"11",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/jet/jet_xray.jpg",
          "id":"11_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/jet/jet_xray_crop.jpg",
          "id":"11_crop",
          "layer":"crop"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/jet/jet_illus.jpg",
          "id":"11_illus",
          "layer":"illus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/pwn1987a/pwn1987a.jpg",
      "title":"Supernova 1987A",
      "description":"A supernova remnant located about 168,000 light years from Earth",
      "url":"https://chandra.harvard.edu/photo/2021/pwn1987a",
      "id":"12",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/pwn1987a/pwn1987a_chandra.jpg",
          "id":"12_chandra",
          "layer":"chandra"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/pwn1987a/pwn1987a_illus.jpg",
          "id":"12_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/pwn1987a/pwn1987a_nustar_chandra.jpg",
          "id":"12_chandra",
          "layer":"chandra"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/pwn1987a/pwn1987a_v_nustar_chandra.jpg",
          "id":"12_chandra",
          "layer":"chandra"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/pwn1987a/pwn1987a_nustar.jpg",
          "id":"12_nustar",
          "layer":"nustar"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/pwn1987a/pwn1987a_2panel.jpg",
          "id":"12_2panel",
          "layer":"2panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/pwn1987a/pwn1987a_print.jpg",
          "id":"12_print",
          "layer":"print"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/sgrae/sgrae.jpg",
      "title":"Sagittarius A East",
      "description":"A supernova remnant located near the center of the Milky Way.",
      "url":"https://chandra.harvard.edu/photo/2021/sgrae",
      "id":"13",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/sgrae/sgrae_xray.jpg",
          "id":"13_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/sgrae/sgrae_radio.jpg",
          "id":"13_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/sgrae/sgrae_full.jpg",
          "id":"13_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/sgrae/sgrae_full_xray.jpg",
          "id":"13_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/sgrae/sgrae_full_radio.jpg",
          "id":"13_radio",
          "layer":"radio"
        }
      ]
    }, {
      "src":"https://stellasonos-files.vercel.app/images/sample-graph.jpg",
      "title":"Sample Graph",
      "description":"",
      "url":"https://stellasonos-files.vercel.app/images/sample-graph.jpg",
      "id":"sample-graph",
      "layers":[]
    }, {
      "src":"https://stellasonos-files.vercel.app/images/sample-image-ellipse.jpg",
      "title":"Sample Image Ellipse",
      "description":"",
      "url":"https://stellasonos-files.vercel.app/images/sample-image-ellipse.jpg",
      "id":"sample-image-ellipse",
      "layers":[]
    }, {
      "src":"https://stellasonos-files.vercel.app/images/sample-image-squares.jpg",
      "title":"Sample Image Squares",
      "description":"",
      "url":"https://stellasonos-files.vercel.app/images/sample-image-squares.jpg",
      "id":"sample-image-squares",
      "layers":[]
    }, {
      "src":"https://chandra.harvard.edu/photo/2021/dualagn/dualagn.jpg",
      "title":"Triple Galaxy Mergers",
      "description":"Two of seven triple galaxy mergers that are located between 370 million and one billion light years away from Earth.",
      "url":"https://chandra.harvard.edu/photo/2021/dualagn",
      "id":"14",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/dualagn/dualagn_j1027_comp.jpg",
          "id":"14_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/dualagn/dualagn_j1027_xray.jpg",
          "id":"14_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/dualagn/dualagn_j1027_optical.jpg",
          "id":"14_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/dualagn/dualagn_j1708_comp.jpg",
          "id":"14_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/dualagn/dualagn_j1708_xray.jpg",
          "id":"14_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/dualagn/dualagn_j1708_optical.jpg",
          "id":"14_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/dualagn/dualagn_j0849_comp.jpg",
          "id":"14_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/dualagn/dualagn_j0849_xray.jpg",
          "id":"14_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/dualagn/dualagn_j0849_optical.jpg",
          "id":"14_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/dualagn/dualagn_ngc3341_comp.jpg",
          "id":"14_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/dualagn/dualagn_ngc3341_xray.jpg",
          "id":"14_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/dualagn/dualagn_ngc3341_optical.jpg",
          "id":"14_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2021/j1818/j1818.jpg",
      "title":"J1818.0-1607",
      "description":"A magnetar located about 21,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2021/j1818",
      "id":"15",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2021/j1818/j1818_inset.jpg",
          "id":"15_inset",
          "layer":"inset"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/j1818/j1818_xray.jpg",
          "id":"15_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/j1818/j1818_ir.jpg",
          "id":"15_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/j1818/j1818_12mu.jpg",
          "id":"15_12mu",
          "layer":"12mu"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/j1818/j1818_22mu.jpg",
          "id":"15_22mu",
          "layer":"22mu"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2021/j1818/j1818_24mu.jpg",
          "id":"15_24mu",
          "layer":"24mu"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/a2261/a2261.jpg",
      "title":"Abell 2261",
      "description":"A cluster of galaxies located about 2.7 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/a2261",
      "id":"16",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/a2261/a2261_xray.jpg",
          "id":"16_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/a2261/a2261_optical_ir.jpg",
          "id":"16_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/a2261/a2261_opt_radio_closeup.jpg",
          "id":"16_closeup",
          "layer":"closeup"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/ic4593/ic4593.jpg",
      "title":"IC 4593",
      "description":"A planetary nebula located about 7,800 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/ic4593",
      "id":"17",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/ic4593/ic4593_xray.jpg",
          "id":"17_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/ic4593/ic4593_optical.jpg",
          "id":"17_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/ic4593/ic4593_halpha.jpg",
          "id":"17_halpha",
          "layer":"halpha"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/ic4593/ic4593_n.jpg",
          "id":"17_n",
          "layer":"n"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/ic4593/ic4593_o.jpg",
          "id":"17_o",
          "layer":"o"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/barnards/barnards.jpg",
      "title":"GJ 699",
      "description":"A red dwarf star located about 6 light years from Earth",
      "url":"https://chandra.harvard.edu/photo/2020/barnards",
      "id":"18",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/barnards/barnards_illus.jpg",
          "id":"18_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/barnards/barnards_graphs.jpg",
          "id":"18_graphs",
          "layer":"graphs"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/barnards/barnards_graph_xray.jpg",
          "id":"18_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/barnards/barnards_graph_uv.jpg",
          "id":"18_uv",
          "layer":"uv"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/lmxb/lmxb.jpg",
      "title":"4U 1916-53",
      "description":"A binary system with a neutron star and companion located about 29,000 light years away.",
      "url":"https://chandra.harvard.edu/photo/2020/lmxb",
      "id":"19",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/lmxb/lmxb_graphs.jpg",
          "id":"19_graphs",
          "layer":"graphs"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/lmxb/lmxb_fe_graph.jpg",
          "id":"19_graph",
          "layer":"graph"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/lmxb/lmxb_si_graph.jpg",
          "id":"19_graph",
          "layer":"graph"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/lmxb/lmxb_illus.jpg",
          "id":"19_illus",
          "layer":"illus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets.jpg",
      "title":"Quasar Survey",
      "description":"Over 700 supermassive black holes at a range of distances.",
      "url":"https://chandra.harvard.edu/photo/2020/bhjets",
      "id":"20",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_illus.jpg",
          "id":"20_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_quasars.jpg",
          "id":"20_quasars",
          "layer":"quasars"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_122539.jpg",
          "id":"20_122539",
          "layer":"122539"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_122539_xray.jpg",
          "id":"20_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_122539_radio.jpg",
          "id":"20_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_151443.jpg",
          "id":"20_151443",
          "layer":"151443"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_151443_xray.jpg",
          "id":"20_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_151443_radio.jpg",
          "id":"20_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_083906.jpg",
          "id":"20_083906",
          "layer":"083906"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_083906_xray.jpg",
          "id":"20_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_083906_radio.jpg",
          "id":"20_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_091528.jpg",
          "id":"20_091528",
          "layer":"091528"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_091528_xray.jpg",
          "id":"20_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/bhjets/bhjets_091528_radio.jpg",
          "id":"20_radio",
          "layer":"radio"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/archives/archives_m82.jpg",
      "title":"M82",
      "description":"A sample of multiwavelength images with data from Chandra and other telescopes.",
      "url":"https://chandra.harvard.edu/photo/2020/archives",
      "id":"21",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_m82.jpg",
          "id":"21_m82",
          "layer":"m82"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_m82_xray.jpg",
          "id":"21_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_m82_optical.jpg",
          "id":"21_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_a2744.jpg",
          "id":"21_a2744",
          "layer":"a2744"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_a2744_xray.jpg",
          "id":"21_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_a2744_optical.jpg",
          "id":"21_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_sn1987a_2000.jpg",
          "id":"21_2000",
          "layer":"2000"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_sn1987a_2005.jpg",
          "id":"21_2005",
          "layer":"2005"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_sn1987a_2009.jpg",
          "id":"21_2009",
          "layer":"2009"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_sn1987a_2013.jpg",
          "id":"21_2013",
          "layer":"2013"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_sn1987a_timelapse.mp4",
          "id":"21_timelapse.mp4",
          "layer":"timelapse.mp4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_extra_1987a_layout.jpg",
          "id":"21_layout",
          "layer":"layout"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_extra_1987a_radio.jpg",
          "id":"21_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_extra_1987a_opt.jpg",
          "id":"21_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_extra_1987a_xray.jpg",
          "id":"21_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_etacar.jpg",
          "id":"21_etacar",
          "layer":"etacar"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_etacar_xray.jpg",
          "id":"21_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_etacar_optical_uv.jpg",
          "id":"21_uv",
          "layer":"uv"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_cartwheel.jpg",
          "id":"21_cartwheel",
          "layer":"cartwheel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_cartwheel_xray.jpg",
          "id":"21_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_cartwheel_optical.jpg",
          "id":"21_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_helix.jpg",
          "id":"21_helix",
          "layer":"helix"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_helix_xray.jpg",
          "id":"21_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_helix_uv.jpg",
          "id":"21_uv",
          "layer":"uv"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_helix_ir.jpg",
          "id":"21_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/archives/archives_helix_optical.jpg",
          "id":"21_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/kepler/kepler.jpg",
      "title":"Kepler's Supernova Remnant",
      "description":"The debris of an exploded star about 13,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/kepler",
      "id":"22",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/kepler/kepler_2000.jpg",
          "id":"22_2000",
          "layer":"2000"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/kepler/kepler_2004.jpg",
          "id":"22_2004",
          "layer":"2004"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/kepler/kepler_2006.jpg",
          "id":"22_2006",
          "layer":"2006"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/kepler/kepler_2014.jpg",
          "id":"22_2014",
          "layer":"2014"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/kepler/kepler_inset_locations_2014.jpg",
          "id":"22_2014",
          "layer":"2014"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/kepler/kepler_schematic_2000.jpg",
          "id":"22_2000",
          "layer":"2000"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/kepler/kepler_schematic_2016.jpg",
          "id":"22_2016",
          "layer":"2016"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/kepler/kepler_schematic_2000_and_2016.gif",
          "id":"22_2016.gif",
          "layer":"2016.gif"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/j1049/j1049.jpg",
      "title":"SpARCS1049",
      "description":"A galaxy cluster located 9.9 billion light years away from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/j1049",
      "id":"23",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/j1049/j1049_xray.jpg",
          "id":"23_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/j1049/j1049_optical.jpg",
          "id":"23_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/cdfsagn/cdfsagn.jpg",
      "title":"Obscured AGN in the Chandra Deep Field South",
      "description":"The deepest X-ray image ever obtained that contains 28 previously misidentified black holes.",
      "url":"https://chandra.harvard.edu/photo/2020/cdfsagn",
      "id":"24",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/cdfsagn/cdfsagn_cdfs_circles.jpg",
          "id":"24_circles",
          "layer":"circles"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/cdfsagn/cdfsagn_cdfs.jpg",
          "id":"24_cdfs",
          "layer":"cdfs"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/cdfsagn/cdfsagn_4_panel.jpg",
          "id":"24_panel",
          "layer":"panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/cdfsagn/cdfsagn_289.jpg",
          "id":"24_289",
          "layer":"289"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/cdfsagn/cdfsagn_321.jpg",
          "id":"24_321",
          "layer":"321"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/cdfsagn/cdfsagn_412.jpg",
          "id":"24_412",
          "layer":"412"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/cdfsagn/cdfsagn_459.jpg",
          "id":"24_459",
          "layer":"459"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/cdfsagn/cdfsagn_illus.jpg",
          "id":"24_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/cdfsagn/cdfsagn_illus_cutout.jpg",
          "id":"24_cutout",
          "layer":"cutout"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383.jpg",
      "title":"HOPS 383",
      "description":"A young protostar located about 1,400 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/hops383",
      "id":"25",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_illus.jpg",
          "id":"25_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_illus2.jpg",
          "id":"25_illus2",
          "layer":"illus2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_xray.jpg",
          "id":"25_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_xray_hi.jpg",
          "id":"25_hi",
          "layer":"hi"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_xray_lo.jpg",
          "id":"25_lo",
          "layer":"lo"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_ir.jpg",
          "id":"25_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_comp.jpg",
          "id":"25_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_dss.jpg",
          "id":"25_dss",
          "layer":"dss"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_dss2.jpg",
          "id":"25_dss2",
          "layer":"dss2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_still1.jpg",
          "id":"25_still1",
          "layer":"still1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_still2.jpg",
          "id":"25_still2",
          "layer":"still2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_still3.jpg",
          "id":"25_still3",
          "layer":"still3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_still4.jpg",
          "id":"25_still4",
          "layer":"still4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/hops383/hops383_still5.jpg",
          "id":"25_still5",
          "layer":"still5"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/gcenter/gcenter.jpg",
      "title":"Galactic Center",
      "description":"The center of the Milky Way galaxy located about 26,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/gcenter",
      "id":"26",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/maxij1820/maxij1820.jpg",
      "title":"MAXI J1820+070",
      "description":"A system with a black hole and companion star about 10,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/maxij1820",
      "id":"27",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/maxij1820/maxij1820_opt_ir.jpg",
          "id":"27_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/maxij1820/maxij1820_frame1.jpg",
          "id":"27_frame1",
          "layer":"frame1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/maxij1820/maxij1820_frame2.jpg",
          "id":"27_frame2",
          "layer":"frame2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/maxij1820/maxij1820_frame3.jpg",
          "id":"27_frame3",
          "layer":"frame3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/maxij1820/maxij1820_frame4.jpg",
          "id":"27_frame4",
          "layer":"frame4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/maxij1820/maxij1820_1_35degree.jpg",
          "id":"27_35degree",
          "layer":"35degree"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/maxij1820/maxij1820_4arcmin.jpg",
          "id":"27_4arcmin",
          "layer":"4arcmin"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/maxij1820/maxij1820_30arcsec.jpg",
          "id":"27_30arcsec",
          "layer":"30arcsec"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/maxij1820/maxij1820_illus.jpg",
          "id":"27_illus",
          "layer":"illus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/a2384/a2384.jpg",
      "title":"Abell 2384",
      "description":"A pair of galaxy clusters located about 1.2 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/a2384",
      "id":"28",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/a2384/a2384_xray.jpg",
          "id":"28_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/a2384/a2384_radio.jpg",
          "id":"28_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/a2384/a2384_optical.jpg",
          "id":"28_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/gsn069/gsn069.jpg",
      "title":"GSN 069",
      "description":"A galaxy with a central supermassive black hole about 250 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/gsn069",
      "id":"29",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/gsn069/gsn069_illus.jpg",
          "id":"29_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/gsn069/gsn069_xray.jpg",
          "id":"29_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/gsn069/gsn069_dss.jpg",
          "id":"29_dss",
          "layer":"dss"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/gsn069/gsn069_illus_orbit.jpg",
          "id":"29_orbit",
          "layer":"orbit"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/isotropic/isotropic.jpg",
      "title":"Isotropic Universe",
      "description":"A sample of galaxy clusters from a large survey.",
      "url":"https://chandra.harvard.edu/photo/2020/isotropic",
      "id":"30",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/isotropic/isotropic_4panel.jpg",
          "id":"30_4panel",
          "layer":"4panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/isotropic/isotropic_a2199.jpg",
          "id":"30_a2199",
          "layer":"a2199"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/isotropic/isotropic_rxcj1504.jpg",
          "id":"30_rxcj1504",
          "layer":"rxcj1504"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/isotropic/isotropic_a85.jpg",
          "id":"30_a85",
          "layer":"a85"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/isotropic/isotropic_a3667.jpg",
          "id":"30_a3667",
          "layer":"a3667"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/isotropic/isotropic_expansion_map_black.jpg",
          "id":"30_black",
          "layer":"black"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/isotropic/isotropic_expansion_map.jpg",
          "id":"30_map",
          "layer":"map"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/perseus/perseus.jpg",
      "title":"Perseus Cluster",
      "description":"A galaxy cluster located about 240 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/perseus",
      "id":"31",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/perseus/perseus_full.jpg",
          "id":"31_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/perseus/perseus_closeup.jpg",
          "id":"31_closeup",
          "layer":"closeup"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/perseus/perseus_illus.jpg",
          "id":"31_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/perseus/perseus_spectrum.jpg",
          "id":"31_spectrum",
          "layer":"spectrum"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/perseus/perseus_scale.jpg",
          "id":"31_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/ophiuchus/ophiuchus.jpg",
      "title":"Ophiuchus Galaxy Cluster",
      "description":"A galaxy cluster located about 390 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/ophiuchus",
      "id":"32",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/ophiuchus/ophiuchus_xmm_xray_ir_radio.jpg",
          "id":"32_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/ophiuchus/ophiuchus_chandra_xray.jpg",
          "id":"32_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/ophiuchus/ophiuchus_xmm_xray.jpg",
          "id":"32_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/ophiuchus/ophiuchus_radio.jpg",
          "id":"32_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/ophiuchus/ophiuchus_ir.jpg",
          "id":"32_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/ophiuchus/ophiuchus_ir_xmm_wider.jpg",
          "id":"32_wider",
          "layer":"wider"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/terzan5/terzan5.jpg",
      "title":"Terzan 5",
      "description":"A globular cluster located about 20,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/terzan5",
      "id":"33",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/terzan5/terzan5_xray_optical.jpg",
          "id":"33_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/terzan5/terzan5_xray.jpg",
          "id":"33_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/terzan5/terzan5_optical.jpg",
          "id":"33_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/3dmodels/3dmodels.jpg",
      "title":"3D Models",
      "description":"A compilation of astronomical visualizations based on Chandra and other X-ray data.",
      "url":"https://chandra.harvard.edu/photo/2020/3dmodels",
      "id":"34",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/3dmodels/3dmodels_1280.jpg",
          "id":"34_1280",
          "layer":"1280"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/3dmodels/3dmodels_nolabel_1280.jpg",
          "id":"34_1280",
          "layer":"1280"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/3dmodels/3dmodels_dgtau.jpg",
          "id":"34_dgtau",
          "layer":"dgtau"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/3dmodels/3dmodels_casa.jpg",
          "id":"34_casa",
          "layer":"casa"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/3dmodels/3dmodels_nova_outburst.jpg",
          "id":"34_outburst",
          "layer":"outburst"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/3dmodels/3dmodels_sn1006.jpg",
          "id":"34_sn1006",
          "layer":"sn1006"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/3dmodels/3dmodels_sn1987a.jpg",
          "id":"34_sn1987a",
          "layer":"sn1987a"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/3dmodels/3dmodels_tycho.jpg",
          "id":"34_tycho",
          "layer":"tycho"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/m87/m87.jpg",
      "title":"M87",
      "description":"A galaxy with a supermassive black hole about 55 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/m87",
      "id":"35",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/m87/m87_widefield.jpg",
          "id":"35_widefield",
          "layer":"widefield"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/m87/m87_2012.jpg",
          "id":"35_2012",
          "layer":"2012"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/m87/m87_2017.jpg",
          "id":"35_2017",
          "layer":"2017"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/m87/m87_full_frame.jpg",
          "id":"35_frame",
          "layer":"frame"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/m87/m87_illustration.jpg",
          "id":"35_illustration",
          "layer":"illustration"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2020/crab3d/crab3d.jpg",
      "title":"Crab Nebula",
      "description":"A nebula powered by a pulsar located about 6,500 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2020/crab3d",
      "id":"36",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2020/crab3d/crab3d_xray.jpg",
          "id":"36_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/crab3d/crab3d_optical.jpg",
          "id":"36_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/crab3d/crab3d_infrared.jpg",
          "id":"36_infrared",
          "layer":"infrared"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2020/crab3d/crab3d_scale.jpg",
          "id":"36_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/ngc6338/ngc6338.jpg",
      "title":"NGC 6338",
      "description":"Two colliding groups of galaxies located about 380 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/ngc6338",
      "id":"37",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/ngc6338/ngc6338_xray.jpg",
          "id":"37_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/ngc6338/ngc6338_optical.jpg",
          "id":"37_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/ngc6338/ngc6338_temperature_map.jpg",
          "id":"37_map",
          "layer":"map"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/bhfeedback/bhfeedback.jpg",
      "title":"Positive Feedback Black Hole",
      "description":"A galaxy located about 9.9 billion light years from Earth",
      "url":"https://chandra.harvard.edu/photo/2019/bhfeedback",
      "id":"38",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/bhfeedback/bhfeedback_xray.jpg",
          "id":"38_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/bhfeedback/bhfeedback_optical.jpg",
          "id":"38_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/bhfeedback/bhfeedback_radio.jpg",
          "id":"38_radio",
          "layer":"radio"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/phoenix/phoenix.jpg",
      "title":"Phoenix Cluster",
      "description":"A galaxy cluster located about 5.8 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/phoenix",
      "id":"39",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/phoenix/phoenix_xray.jpg",
          "id":"39_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/phoenix/phoenix_optical.jpg",
          "id":"39_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/phoenix/phoenix_radio.jpg",
          "id":"39_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/phoenix/phoenix_multi.jpg",
          "id":"39_multi",
          "layer":"multi"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/archives/archives_n103b.jpg",
      "title":"SNR 0509-68.7",
      "description":"Six objects in the Large Magellanic Cloud about 160,000 light years away.",
      "url":"https://chandra.harvard.edu/photo/2019/archives",
      "id":"40",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_n103b.jpg",
          "id":"40_n103b",
          "layer":"n103b"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_n103b_xray.jpg",
          "id":"40_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_n103b_optical.jpg",
          "id":"40_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_lha120_n44.jpg",
          "id":"40_n44",
          "layer":"n44"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_lha120_n44_xray.jpg",
          "id":"40_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_lha120_n44_optical.jpg",
          "id":"40_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_n63a.jpg",
          "id":"40_n63a",
          "layer":"n63a"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_n63a_xray.jpg",
          "id":"40_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_n63a_optical.jpg",
          "id":"40_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_dem_l71.jpg",
          "id":"40_l71",
          "layer":"l71"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_dem_l71_xray.jpg",
          "id":"40_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_dem_l71_optical.jpg",
          "id":"40_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_dem_l238.jpg",
          "id":"40_l238",
          "layer":"l238"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_dem_l238_xray.jpg",
          "id":"40_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_dem_l238_optical.jpg",
          "id":"40_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_n132d.jpg",
          "id":"40_n132d",
          "layer":"n132d"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_n132d_xray.jpg",
          "id":"40_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/archives/archives_n132d_optical.jpg",
          "id":"40_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/a1758/a1758.jpg",
      "title":"Abell 1758",
      "description":"A collision of four galaxy clusters located about 3 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/a1758",
      "id":"41",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/a1758/a1758_xray.jpg",
          "id":"41_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/a1758/a1758_optical.jpg",
          "id":"41_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/a1758/a1758-with-labels.jpg",
          "id":"41_a1758-with-labels",
          "layer":"a1758-with-labels"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho.jpg",
      "title":"Tycho's Supernova Remnant",
      "description":"A supernova remnant located about 13,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/tycho",
      "id":"42",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_xray.jpg",
          "id":"42_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_color_map_red.jpg",
          "id":"42_red",
          "layer":"red"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_color_map_green.jpg",
          "id":"42_green",
          "layer":"green"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_color_map_blue.jpg",
          "id":"42_blue",
          "layer":"blue"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_optical.jpg",
          "id":"42_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_stl.jpg",
          "id":"42_stl",
          "layer":"stl"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_outer_left.stl",
          "id":"42_left.stl",
          "layer":"left.stl"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_inner_left.stl",
          "id":"42_left.stl",
          "layer":"left.stl"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_inner_right.stl",
          "id":"42_right.stl",
          "layer":"right.stl"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_outer_right.stl",
          "id":"42_right.stl",
          "layer":"right.stl"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_outer_left1.stl",
          "id":"42_left1.stl",
          "layer":"left1.stl"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_inner_left1.stl",
          "id":"42_left1.stl",
          "layer":"left1.stl"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_inner_right1.stl",
          "id":"42_right1.stl",
          "layer":"right1.stl"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/tycho/tycho_outer_right1.stl",
          "id":"42_right1.stl",
          "layer":"right1.stl"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/3blackholes/3blackholes.jpg",
      "title":"SDSS J0849+1114",
      "description":"A trio of black holes located about a billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/3blackholes",
      "id":"43",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/3blackholes/3blackholes_xray.jpg",
          "id":"43_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/3blackholes/3blackholes_optical.jpg",
          "id":"43_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/3blackholes/3blackholes_xray_opt.jpg",
          "id":"43_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/3blackholes/3blackholes_xray_full.jpg",
          "id":"43_full",
          "layer":"full"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/gsn069/gsn069.jpg",
      "title":"GSN 069",
      "description":"A galaxy containing a supermassive black hole about 250,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/gsn069",
      "id":"44",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/gsn069_optical.jpg",
          "id":"44_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/gsn069_light_curve.jpg",
          "id":"44_curve",
          "layer":"curve"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/0hours_1_lab.jpg",
          "id":"44_lab",
          "layer":"lab"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/0hours_1.jpg",
          "id":"44_1",
          "layer":"1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/0hours_2_lab.jpg",
          "id":"44_lab",
          "layer":"lab"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/0hours_2.jpg",
          "id":"44_2",
          "layer":"2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/0hours_3_lab.jpg",
          "id":"44_lab",
          "layer":"lab"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/0hours_3.jpg",
          "id":"44_3",
          "layer":"3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/8hours_1_lab.jpg",
          "id":"44_lab",
          "layer":"lab"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/8hours_1.jpg",
          "id":"44_1",
          "layer":"1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/8hours_2_lab.jpg",
          "id":"44_lab",
          "layer":"lab"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/8hours_2.jpg",
          "id":"44_2",
          "layer":"2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/8hours_3_lab.jpg",
          "id":"44_lab",
          "layer":"lab"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/8hours_3.jpg",
          "id":"44_3",
          "layer":"3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/8hours_4_lab.jpg",
          "id":"44_lab",
          "layer":"lab"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/8hours_4.jpg",
          "id":"44_4",
          "layer":"4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/8hours_5_lab.jpg",
          "id":"44_lab",
          "layer":"lab"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/8hours_5.jpg",
          "id":"44_5",
          "layer":"5"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/16hours_1_lab.jpg",
          "id":"44_lab",
          "layer":"lab"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/16hours_1.jpg",
          "id":"44_1",
          "layer":"1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/16hours_2_lab.jpg",
          "id":"44_lab",
          "layer":"lab"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/gsn069/16hours_2.jpg",
          "id":"44_2",
          "layer":"2"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/firstlight/firstlight.jpg",
      "title":"Cassiopeia A",
      "description":"A supernova remnant located about 11,000 light years away.",
      "url":"https://chandra.harvard.edu/photo/2019/firstlight",
      "id":"45",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/firstlight/firstlight_xray.jpg",
          "id":"45_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/firstlight/firstlight_optical.jpg",
          "id":"45_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/firstlight/firstlight_2000.jpg",
          "id":"45_2000",
          "layer":"2000"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/firstlight/firstlight_2002.jpg",
          "id":"45_2002",
          "layer":"2002"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/firstlight/firstlight_2004.jpg",
          "id":"45_2004",
          "layer":"2004"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/firstlight/firstlight_2007.jpg",
          "id":"45_2007",
          "layer":"2007"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/firstlight/firstlight_2009.jpg",
          "id":"45_2009",
          "layer":"2009"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/firstlight/firstlight_2010.jpg",
          "id":"45_2010",
          "layer":"2010"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/firstlight/firstlight_2012.jpg",
          "id":"45_2012",
          "layer":"2012"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/firstlight/firstlight_2013.jpg",
          "id":"45_2013",
          "layer":"2013"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/cloaked/cloaked.jpg",
      "title":"QSO PSO167-13",
      "description":"A black hole obscured by gas and dust about 13 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/cloaked",
      "id":"46",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/cloaked/cloaked_xray.jpg",
          "id":"46_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/cloaked/cloaked_radio.jpg",
          "id":"46_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/cloaked/cloaked_optical.jpg",
          "id":"46_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/20th/20th_g292.jpg",
      "title":"G292.0+1.8",
      "description":"A collection of images including Chandra data that range in object type and distance.",
      "url":"https://chandra.harvard.edu/photo/2019/20th",
      "id":"47",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_a2146.jpg",
          "id":"47_a2146",
          "layer":"a2146"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_a2146_xray.jpg",
          "id":"47_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_a2146_optical.jpg",
          "id":"47_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_milkyway.jpg",
          "id":"47_milkyway",
          "layer":"milkyway"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_milkyway_wide.jpg",
          "id":"47_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_milkyway_xray.jpg",
          "id":"47_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_milkyway_radio.jpg",
          "id":"47_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_30dor.jpg",
          "id":"47_30dor",
          "layer":"30dor"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_cygob.jpg",
          "id":"47_cygob",
          "layer":"cygob"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_cygob_xray.jpg",
          "id":"47_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_cygob_halpha.jpg",
          "id":"47_halpha",
          "layer":"halpha"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_cygob_infrared.jpg",
          "id":"47_infrared",
          "layer":"infrared"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_ngc604.jpg",
          "id":"47_ngc604",
          "layer":"ngc604"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_ngc604_xray.jpg",
          "id":"47_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_ngc604_optical.jpg",
          "id":"47_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/20th/20th_g292.jpg",
          "id":"47_g292",
          "layer":"g292"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/quasars/quasars_q2237.jpg",
      "title":"Q2237+0305",
      "description":"Six quasars ranging in distance from 8.8 billion to 10.9 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/quasars",
      "id":"48",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/quasars/quasars_q2237.jpg",
          "id":"48_q2237",
          "layer":"q2237"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/quasars/quasars_he0435.jpg",
          "id":"48_he0435",
          "layer":"he0435"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/quasars/quasars_he1104.jpg",
          "id":"48_he1104",
          "layer":"he1104"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/quasars/quasars_sdss1004.jpg",
          "id":"48_sdss1004",
          "layer":"sdss1004"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/cluster_merge/cluster_merge.jpg",
      "title":"Cluster Merger",
      "description":"Two galaxy clusters located about 1.2 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/cluster_merge",
      "id":"49",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/cluster_merge/cluster_merge.jpg",
          "id":"49_merge",
          "layer":"merge"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/cluster_merge/cluster_merge_xray.jpg",
          "id":"49_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/cluster_merge/cluster_merge_optical.jpg",
          "id":"49_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/cluster_merge/cluster_merge_radio.jpg",
          "id":"49_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/cluster_merge/cluster_merge_sequence.jpg",
          "id":"49_sequence",
          "layer":"sequence"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/coma/coma.jpg",
      "title":"Coma Cluster",
      "description":"A galaxy cluster located about 320 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/coma",
      "id":"50",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/coma/coma_xray.jpg",
          "id":"50_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/coma/coma_optical.jpg",
          "id":"50_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/coma/coma_xray_opt_wide.jpg",
          "id":"50_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/coma/coma_extended.jpg",
          "id":"50_extended",
          "layer":"extended"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/coma/coma_extended_xray.jpg",
          "id":"50_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/coma/coma_extended_optical.jpg",
          "id":"50_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/mrk1216/mrk1216.jpg",
      "title":"Mrk 1216",
      "description":"A galaxy located over 295 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/mrk1216",
      "id":"51",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/mrk1216/mrk1216_xray.jpg",
          "id":"51_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/mrk1216/mrk1216_optical.jpg",
          "id":"51_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/mrk1216/mrk1216_xray_scale.jpg",
          "id":"51_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/cme/cme.jpg",
      "title":"HR 9024",
      "description":"A star located about 450 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/cme",
      "id":"52",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/fornax/fornax.jpg",
      "title":"Fornax Cluster",
      "description":"A galaxy cluster located about 60 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/fornax",
      "id":"53",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/fornax/fornax_15arcmin.jpg",
          "id":"53_15arcmin",
          "layer":"15arcmin"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/fornax/fornax_dss.jpg",
          "id":"53_dss",
          "layer":"dss"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/xt2/xt2.jpg",
      "title":"CDF-S XT2",
      "description":"A neutron star merger located in a galaxy about 6.6 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/xt2",
      "id":"54",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/xt2/xt2_optical.jpg",
          "id":"54_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/xt2/xt2_xray_frames_layout.jpg",
          "id":"54_layout",
          "layer":"layout"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/xt2/Frame2.jpg",
          "id":"54_Frame2",
          "layer":"Frame2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/xt2/Frame3.jpg",
          "id":"54_Frame3",
          "layer":"Frame3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/xt2/Frame5.jpg",
          "id":"54_Frame5",
          "layer":"Frame5"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/xt2/Frame6.jpg",
          "id":"54_Frame6",
          "layer":"Frame6"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/xt2/Frame7.jpg",
          "id":"54_Frame7",
          "layer":"Frame7"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/xt2/Frame8.jpg",
          "id":"54_Frame8",
          "layer":"Frame8"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/xt2/Frame9.jpg",
          "id":"54_Frame9",
          "layer":"Frame9"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/xt2/Frame10.jpg",
          "id":"54_Frame10",
          "layer":"Frame10"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/xt2/Frame11.jpg",
          "id":"54_Frame11",
          "layer":"Frame11"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/black_hole/black_hole.jpg",
      "title":"M87",
      "description":"The core of a galaxy about 50 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/black_hole",
      "id":"55",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/black_hole/black_hole_eht.jpg",
          "id":"55_eht",
          "layer":"eht"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/black_hole/black_hole_xray_layout.jpg",
          "id":"55_layout",
          "layer":"layout"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/black_hole/black_hole_xray_radio.jpg",
          "id":"55_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/black_hole/black_hole_xray.jpg",
          "id":"55_xray",
          "layer":"xray"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/gcenter/gcenter.jpg",
      "title":"Galactic Center",
      "description":"A region at the center of the Milky Way located about 26,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/gcenter",
      "id":"56",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/teacup/teacup.jpg",
      "title":"SDSS J1430+1339",
      "description":"A quasar located about 1.1 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/teacup",
      "id":"57",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/teacup/teacup_xray.jpg",
          "id":"57_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/teacup/teacup_optical.jpg",
          "id":"57_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/teacup/teacup_radio_opt.jpg",
          "id":"57_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/teacup/teacup_wide_field.jpg",
          "id":"57_field",
          "layer":"field"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/teacup/teacup_scale.jpg",
          "id":"57_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/ngc3079/ngc3079.jpg",
      "title":"NGC 3079",
      "description":"A galaxy located about 67 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/ngc3079",
      "id":"58",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/ngc3079/ngc3079_xray.jpg",
          "id":"58_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/ngc3079/ngc3079_optical.jpg",
          "id":"58_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/ngc3079/ngc3079_closeup.jpg",
          "id":"58_closeup",
          "layer":"closeup"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/ngc3079/ngc3079_closeup_xray.jpg",
          "id":"58_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/ngc3079/ngc3079_closeup_optical.jpg",
          "id":"58_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/ngc3079/ngc3079_scale.jpg",
          "id":"58_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/whim/whim.jpg",
      "title":"WHIM: H1821+643",
      "description":"A quasar located about 3.4 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/whim",
      "id":"59",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/whim/whim_filaments.jpg",
          "id":"59_filaments",
          "layer":"filaments"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/whim/whim_light_path_full_field.jpg",
          "id":"59_field",
          "layer":"field"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/dark/dark.jpg",
      "title":"Quasar Survey",
      "description":"About 1,600 rapidly growing black holes located up to 12.7 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/dark",
      "id":"60",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/dark/dark_illus.jpg",
          "id":"60_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/dark/dark_pss_0133_0400_close.jpg",
          "id":"60_close",
          "layer":"close"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/dark/dark_pss_0955_5940_close.jpg",
          "id":"60_close",
          "layer":"close"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/dark/dark_pss_0133_0400.jpg",
          "id":"60_0400",
          "layer":"0400"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/dark/dark_pss_0955_5940.jpg",
          "id":"60_5940",
          "layer":"5940"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/cyga/cyga.jpg",
      "title":"Cygnus A",
      "description":"A large galaxy in the middle of a galaxy cluster about 760 million light years away.",
      "url":"https://chandra.harvard.edu/photo/2019/cyga",
      "id":"61",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/cyga/cyga_inset.jpg",
          "id":"61_inset",
          "layer":"inset"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/cyga/cyga_optical_xray.jpg",
          "id":"61_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/cyga/cyga_xray.jpg",
          "id":"61_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/cyga/cyga_xray_inset_unlabeled.jpg",
          "id":"61_unlabeled",
          "layer":"unlabeled"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/cyga/cyga_optical.jpg",
          "id":"61_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/cyga/cyga_above_view_ill.jpg",
          "id":"61_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/cyga/cyga_our_view_ill.jpg",
          "id":"61_ill",
          "layer":"ill"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2019/bhspin/bhspin.jpg",
      "title":"ASASSN-14li",
      "description":"A tidal disruption event in a galaxy about 290 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2019/bhspin",
      "id":"62",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2019/bhspin/bhspin_xray.jpg",
          "id":"62_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/bhspin/bhspin_composite.jpg",
          "id":"62_composite",
          "layer":"composite"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2019/bhspin/bhspin_optical.jpg",
          "id":"62_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/archives/archives_e0102.jpg",
      "title":"E0102-72.3",
      "description":"A collection of images including Chandra data that range in object type and distance.",
      "url":"https://chandra.harvard.edu/photo/2018/archives",
      "id":"63",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_titles.jpg",
          "id":"63_titles",
          "layer":"titles"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_e0102.jpg",
          "id":"63_e0102",
          "layer":"e0102"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_e0102_xray.jpg",
          "id":"63_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_e0102_optical.jpg",
          "id":"63_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_a370.jpg",
          "id":"63_a370",
          "layer":"a370"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_a370_xray.jpg",
          "id":"63_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_a370_optical.jpg",
          "id":"63_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_m8.jpg",
          "id":"63_m8",
          "layer":"m8"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_m8_xray.jpg",
          "id":"63_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_m8_optical.jpg",
          "id":"63_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_orion.jpg",
          "id":"63_orion",
          "layer":"orion"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_orion_xray.jpg",
          "id":"63_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_orion_radio.jpg",
          "id":"63_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_m33.jpg",
          "id":"63_m33",
          "layer":"m33"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_m33_xray.jpg",
          "id":"63_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_m33_optical.jpg",
          "id":"63_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_a2744.jpg",
          "id":"63_a2744",
          "layer":"a2744"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_a2744_xray.jpg",
          "id":"63_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_a2744_optical.jpg",
          "id":"63_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/archives/archives_a2744_radio.jpg",
          "id":"63_radio",
          "layer":"radio"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/a2597/a2597.jpg",
      "title":"Abell 2597",
      "description":"A galaxy cluster about 1.1 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/a2597",
      "id":"64",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/wdac/wdac.jpg",
      "title":"ASASSN-16oh",
      "description":"A white dwarf binary system located in the Small Magellanic Cloud about 180,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/wdac",
      "id":"65",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/a1033/a1033.jpg",
      "title":"Abell 1033",
      "description":"A galaxy cluster located about 1.6 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/a1033",
      "id":"66",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/a1033/a1033_xray.jpg",
          "id":"66_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/a1033/a1033_optical.jpg",
          "id":"66_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/a1033/a1033_radio.jpg",
          "id":"66_radio",
          "layer":"radio"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/kes75/kes75.jpg",
      "title":"Kes 75",
      "description":"A supernova remnant located about 19,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/kes75",
      "id":"67",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/kes75/kes75_xray.jpg",
          "id":"67_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/kes75/kes75_optical.jpg",
          "id":"67_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/kilonova/kilonova.jpg",
      "title":"GRB 150101B",
      "description":"The likely merger of two neutron stars located about 1.7 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/kilonova",
      "id":"68",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/kilonova/kilonova_xray.jpg",
          "id":"68_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/kilonova/kilonova_optical_ir.jpg",
          "id":"68_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/a2142/a2142.jpg",
      "title":"Abell 2142",
      "description":"A galaxy cluster about 1.2 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/a2142",
      "id":"69",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/a2142/a2142_xray.jpg",
          "id":"69_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/a2142/a2142_xray_inset.jpg",
          "id":"69_inset",
          "layer":"inset"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/a2142/a2142_optical.jpg",
          "id":"69_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/a2142/a2142_optical_xray.jpg",
          "id":"69_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/a2142/a2142_optical_xray_inset.jpg",
          "id":"69_inset",
          "layer":"inset"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/a2142/a2142_lab.jpg",
          "id":"69_lab",
          "layer":"lab"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/a2142/a2142_glabels.jpg",
          "id":"69_glabels",
          "layer":"glabels"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/ring/ring.jpg",
      "title":"AM 0644-741",
      "description":"A ring galaxy located about 300 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/ring",
      "id":"70",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/ring/ring_xray.jpg",
          "id":"70_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/ring/ring_optical.jpg",
          "id":"70_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/imbhs/imbhs.jpg",
      "title":"COSMOS Legacy Survey",
      "description":"Two separate surveys of \"intermediate-mass black holes\u201d that stretch from the nearby Universe to 10.9 billion light years away.",
      "url":"https://chandra.harvard.edu/photo/2018/imbhs",
      "id":"71",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/imbhs/imbhs_cosmos.jpg",
          "id":"71_cosmos",
          "layer":"cosmos"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/imbhs/imbhs_xray.jpg",
          "id":"71_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/imbhs/imbhs_ir.jpg",
          "id":"71_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/imbhs/imbhs_illus.jpg",
          "id":"71_illus",
          "layer":"illus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/rwaur/rwaur.jpg",
      "title":"RW Aur A",
      "description":"A young star located about 450 light years from Earth",
      "url":"https://chandra.harvard.edu/photo/2018/rwaur",
      "id":"72",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/rwaur/rwaur_spec.jpg",
          "id":"72_spec",
          "layer":"spec"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/rwaur/rwaur_illus.jpg",
          "id":"72_illus",
          "layer":"illus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/m16/m16.jpg",
      "title":"The Eagle Nebula (M16)",
      "description":"A nearby star-forming region about 5,700 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/m16",
      "id":"73",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/m16/m16_xray.jpg",
          "id":"73_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/m16/m16_optical.jpg",
          "id":"73_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/m16/m16_fov_composite.jpg",
          "id":"73_composite",
          "layer":"composite"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/mrk1216/mrk1216.jpg",
      "title":"Mrk 1216",
      "description":"A 'red nugget' galaxy located about 295 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/mrk1216",
      "id":"74",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/mrk1216/mrk1216_xray.jpg",
          "id":"74_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/mrk1216/mrk1216_optical.jpg",
          "id":"74_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/mrk1216/mrk1216_xray_optical.jpg",
          "id":"74_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/mrk1216/mrk1216_illus.jpg",
          "id":"74_illus",
          "layer":"illus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/j2150/j2150.jpg",
      "title":"J2150",
      "description":"A medium-weight black hole in the process of tearing apart and feasting on a nearby star.",
      "url":"https://chandra.harvard.edu/photo/2018/j2150",
      "id":"75",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/j2150/j2150_xray_opt.jpg",
          "id":"75_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/j2150/j2150_xmm.jpg",
          "id":"75_xmm",
          "layer":"xmm"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/alphacen/alphacen.jpg",
      "title":"Alpha Centauri",
      "description":"A triple star system about 4 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/alphacen",
      "id":"76",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/alphacen/alphacen_xray.jpg",
          "id":"76_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/alphacen/alphacen_optical.jpg",
          "id":"76_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/alphacen/alphacen_context.jpg",
          "id":"76_context",
          "layer":"context"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/gw170817/gw170817.jpg",
      "title":"GW170817",
      "description":"A gravitational wave source located in the NGC 4993 galaxy about 130 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/gw170817",
      "id":"77",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/gw170817/gw170817_illus.jpg",
          "id":"77_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/gw170817/gw170817_illus2.jpg",
          "id":"77_illus2",
          "layer":"illus2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/gw170817/gw170817_unlabeled.jpg",
          "id":"77_unlabeled",
          "layer":"unlabeled"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/e0102/e0102.jpg",
      "title":"E0102-72.3",
      "description":"The debris from an exploded star about 200,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/e0102",
      "id":"78",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/e0102/e0102_xray.jpg",
          "id":"78_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/e0102/e0102_optical.jpg",
          "id":"78_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/sgra_swarm/sgra_swarm.jpg",
      "title":"Sagittarius A* Swarm",
      "description":" A region around the supermassive black hole at the Milky Way's center about 26,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/sgra_swarm",
      "id":"79",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/sgra_swarm/sgra_swarm_full_field.jpg",
          "id":"79_field",
          "layer":"field"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/sgra_swarm/sgra_swarm.jpg",
          "id":"79_swarm",
          "layer":"swarm"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/sgra_swarm/sgra_swarm_sources.jpg",
          "id":"79_sources",
          "layer":"sources"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/sgra_swarm/sgra_swarm_red-low.jpg",
          "id":"79_red-low",
          "layer":"red-low"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/sgra_swarm/sgra_swarm_white_high.jpg",
          "id":"79_high",
          "layer":"high"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/ngc6231/ngc6231.jpg",
      "title":"NGC 6231",
      "description":"A cluster of stars located about 5,200 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/ngc6231",
      "id":"80",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/ngc6231/ngc6231_xray.jpg",
          "id":"80_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/ngc6231/ngc6231_ir.jpg",
          "id":"80_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/perseus/perseus.jpg",
      "title":"Perseus Cluster",
      "description":"A galaxy cluster located about 250 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/perseus",
      "id":"81",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/perseus/perseus_rollover.jpg",
          "id":"81_rollover",
          "layer":"rollover"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/crab/crab.jpg",
      "title":"Crab Nebula",
      "description":"A new composite image of the Crab Nebula features X-rays from Chandra, optical data from Hubble, and infrared data from Spitzer. ",
      "url":"https://chandra.harvard.edu/photo/2018/crab",
      "id":"82",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/crab/crab_xray.jpg",
          "id":"82_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/crab/crab_optical.jpg",
          "id":"82_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/crab/crab_infrared.jpg",
          "id":"82_infrared",
          "layer":"infrared"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/m51/m51.jpg",
      "title":"ULX in M51",
      "description":"An ultraluminous X-ray source in the M51, or Whirlpool, galaxy.",
      "url":"https://chandra.harvard.edu/photo/2018/m51",
      "id":"83",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/m51/m51_crop_unlabeled.jpg",
          "id":"83_unlabeled",
          "layer":"unlabeled"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/m51/m51_unlabeled.jpg",
          "id":"83_unlabeled",
          "layer":"unlabeled"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/m51/m51_xray.jpg",
          "id":"83_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/m51/m51_optical.jpg",
          "id":"83_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/cdfs_bh/cdfs_bh.jpg",
      "title":"Chandra Deep Field South ",
      "description":"The growth of the biggest black holes in the Universe is outrunning the rate of formation of stars in the galaxies they inhabit.",
      "url":"https://chandra.harvard.edu/photo/2018/cdfs_bh",
      "id":"84",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/cdfs_bh/cdfs_bh_xray.jpg",
          "id":"84_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/cdfs_bh/cdfs_bh_xray_optical.jpg",
          "id":"84_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/cdfs_bh/cdfs_bh_optical.jpg",
          "id":"84_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/cdfs_bh/cdfs_bh_illus.jpg",
          "id":"84_illus",
          "layer":"illus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/j1354/j1354.jpg",
      "title":"SDSS J1354+1327",
      "description":"A galaxy with a supermassive black hole about 800 million light years away.",
      "url":"https://chandra.harvard.edu/photo/2018/j1354",
      "id":"85",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2018/j1354/j1354_xray.jpg",
          "id":"85_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/j1354/j1354_xray_closeup.jpg",
          "id":"85_closeup",
          "layer":"closeup"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/j1354/j1354_xray_optical.jpg",
          "id":"85_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/j1354/j1354_xray_optical_closeup.jpg",
          "id":"85_closeup",
          "layer":"closeup"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/j1354/j1354_optical.jpg",
          "id":"85_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2018/j1354/j1354_filters.jpg",
          "id":"85_filters",
          "layer":"filters"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2018/gcenter360/gcenter360.jpg",
      "title":"Galactic Center",
      "description":"The region of the Milky Way's center about 26,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2018/gcenter360",
      "id":"86",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/dark/dark.jpg",
      "title":"Perseus Cluster",
      "description":"A galaxy cluster located about 250 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/dark",
      "id":"87",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/dark/dark_xray.jpg",
          "id":"87_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/dark/dark_optical_radio.jpg",
          "id":"87_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/dark/dark_illus.jpg",
          "id":"87_illus",
          "layer":"illus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/casa_life/casa_life.jpg",
      "title":"Cassiopeia A",
      "description":"A supernova remnant about 11,000 light from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/casa_life",
      "id":"88",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/casa_life/casa_life_elements.jpg",
          "id":"88_elements",
          "layer":"elements"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/casa_life/casa_life_elements_sub.jpg",
          "id":"88_sub",
          "layer":"sub"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/casa_life/casa_life_multipanel.jpg",
          "id":"88_multipanel",
          "layer":"multipanel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/casa_life/casa_life_silicon.jpg",
          "id":"88_silicon",
          "layer":"silicon"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/casa_life/casa_life_sulfur.jpg",
          "id":"88_sulfur",
          "layer":"sulfur"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/casa_life/casa_life_calcium.jpg",
          "id":"88_calcium",
          "layer":"calcium"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/casa_life/casa_life_iron.jpg",
          "id":"88_iron",
          "layer":"iron"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/casa_life/casa_life_blastwave.jpg",
          "id":"88_blastwave",
          "layer":"blastwave"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/casa_life/casa_life_periodic.jpg",
          "id":"88_periodic",
          "layer":"periodic"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/casa_life/casa_life_presupernova.jpg",
          "id":"88_presupernova",
          "layer":"presupernova"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/m31/m31.jpg",
      "title":"J0045+41",
      "description":"An object possibly containing two supermassive black holes about 2.6 billion light years away.",
      "url":"https://chandra.harvard.edu/photo/2017/m31",
      "id":"89",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/m31/m31_xray.jpg",
          "id":"89_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/m31/m31_optical_xray.jpg",
          "id":"89_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/m31/m31_optical.jpg",
          "id":"89_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/m31/m31_large_optical.jpg",
          "id":"89_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/m31/m31_dss_optical.jpg",
          "id":"89_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/jupiter/jupiter.jpg",
      "title":"Jupiter",
      "description":"The Dynamic Duo: Jupiter's Independently Pulsating X-ray Auroras",
      "url":"https://chandra.harvard.edu/photo/2017/jupiter",
      "id":"90",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/jupiter/jupiter_north_pole.jpg",
          "id":"90_pole",
          "layer":"pole"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/jupiter/jupiter_south_pole.jpg",
          "id":"90_pole",
          "layer":"pole"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/jupiter/jupiter_north_pole_xray.jpg",
          "id":"90_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/jupiter/jupiter_south_pole_xray.jpg",
          "id":"90_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/jupiter/jupiter_north_pole_optical.jpg",
          "id":"90_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/jupiter/jupiter_south_pole_optical.jpg",
          "id":"90_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/jupiter/jupiter_illus.jpg",
          "id":"90_illus",
          "layer":"illus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/macsj1149/macsj1149.jpg",
      "title":"MACS J1149.5+2233",
      "description":"A system of merging galaxy clusters located about 5 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/macsj1149",
      "id":"91",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/macsj1149/macsj1149_xray.jpg",
          "id":"91_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/macsj1149/macsj1149_radio.jpg",
          "id":"91_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/macsj1149/macsj1149_optical.jpg",
          "id":"91_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/2nstars/2nstars.jpg",
      "title":"GW170817",
      "description":"A gravitational wave source located in the NGC 4993 galaxy about 130 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/2nstars",
      "id":"92",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/2nstars/2nstars_xray_8-19-2017.jpg",
          "id":"92_8-19-2017",
          "layer":"8-19-2017"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/2nstars/2nstars_xray_8-26-2017.jpg",
          "id":"92_8-26-2017",
          "layer":"8-26-2017"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/2nstars/2nstars_optical.jpg",
          "id":"92_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/2nstars/2nstars_neutron_jet1_833.jpg",
          "id":"92_833",
          "layer":"833"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/2nstars/2nstars_neutron_jet2_833.jpg",
          "id":"92_833",
          "layer":"833"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_140737_xray_opt.jpg",
      "title":"J140737",
      "description":"Two pairs of merging supermassive black holes",
      "url":"https://chandra.harvard.edu/photo/2017/doubleagn",
      "id":"93",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_122104_xray_opt.jpg",
          "id":"93_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_122104_xray.jpg",
          "id":"93_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_122104_optical.jpg",
          "id":"93_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_140737_xray_opt.jpg",
          "id":"93_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_140737_xray.jpg",
          "id":"93_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_140737_optical.jpg",
          "id":"93_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_012218_xray_opt.jpg",
          "id":"93_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_012218_xray.jpg",
          "id":"93_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_012218_optical.jpg",
          "id":"93_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_104518_xray_opt.jpg",
          "id":"93_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_104518_xray.jpg",
          "id":"93_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_104518_optical.jpg",
          "id":"93_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_130653_xray_opt.jpg",
          "id":"93_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_130653_xray.jpg",
          "id":"93_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_130653_optical.jpg",
          "id":"93_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/doubleagn/doubleagn_illus.jpg",
          "id":"93_illus",
          "layer":"illus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/v745/v745.jpg",
      "title":"V745 Sco",
      "description":"An orbiting red giant and white dwarf star system located about 25,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/v745",
      "id":"94",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/v745/v745_optical.jpg",
          "id":"94_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/v745/v745_3d1.jpg",
          "id":"94_3d1",
          "layer":"3d1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/v745/v745_3d2.jpg",
          "id":"94_3d2",
          "layer":"3d2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/v745/v745_3d3.jpg",
          "id":"94_3d3",
          "layer":"3d3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/v745/v745_3d4.jpg",
          "id":"94_3d4",
          "layer":"3d4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/v745/v745_3d5.jpg",
          "id":"94_3d5",
          "layer":"3d5"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/v745/v745_3d6.jpg",
          "id":"94_3d6",
          "layer":"3d6"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/gj176/gj176.jpg",
      "title":"GJ 176",
      "description":"Sun-like stars: A survey of 24 Sun-like stars more than a billion years old",
      "url":"https://chandra.harvard.edu/photo/2017/gj176",
      "id":"95",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/gj176/gj176_illus.jpg",
          "id":"95_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/gj176/gj176_xray.jpg",
          "id":"95_xray",
          "layer":"xray"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/ic10/ic10.jpg",
      "title":"IC 10",
      "description":"A starburst galaxy about 2.2 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/ic10",
      "id":"96",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/ic10/ic10_xray.jpg",
          "id":"96_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/ic10/ic10_optical.jpg",
          "id":"96_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/w51/w51.jpg",
      "title":"W51",
      "description":"A giant molecular cloud where stars are forming about 17,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/w51",
      "id":"97",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/w51/w51_xray.jpg",
          "id":"97_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/w51/w51_ir.jpg",
          "id":"97_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/arp299/arp299.jpg",
      "title":"Arp 299",
      "description":"Arp 299: A system of merging galaxies located about 140 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/arp299",
      "id":"98",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/arp299/arp299_xray.jpg",
          "id":"98_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/arp299/arp299_optical.jpg",
          "id":"98_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/raqr/raqr.jpg",
      "title":"R Aquarii",
      "description":"A binary star system located about 710 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/raqr",
      "id":"99",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/raqr/raqr_xray.jpg",
          "id":"99_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/raqr/raqr_optical.jpg",
          "id":"99_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/raqr/raqr_xray_2000_nolabel.jpg",
          "id":"99_nolabel",
          "layer":"nolabel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/raqr/raqr_xray_2003_nolabel.jpg",
          "id":"99_nolabel",
          "layer":"nolabel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/raqr/raqr_xray_2005_nolabel.jpg",
          "id":"99_nolabel",
          "layer":"nolabel"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/cdfs2/cdfs2.jpg",
      "title":"Chandra Deep Field South ",
      "description":"A population of growing black holes over 13 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/cdfs2",
      "id":"100",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfs2/cdfs2_xray.jpg",
          "id":"100_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfs2/cdfs2_illus.jpg",
          "id":"100_illus",
          "layer":"illus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/rsmbh/rsmbh.jpg",
      "title":"CXO J101527.2+625911",
      "description":"A candidate recoiling black hole located in an elliptical galaxy about 3.9 billion light years away.",
      "url":"https://chandra.harvard.edu/photo/2017/rsmbh",
      "id":"101",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/rsmbh/rsmbh_illus.jpg",
          "id":"101_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/rsmbh/rsmbh_inset.jpg",
          "id":"101_inset",
          "layer":"inset"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/crab/crab.jpg",
      "title":"Crab Nebula",
      "description":"A supernova remnant located about 6,500 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/crab",
      "id":"102",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/crab/crab_xray.jpg",
          "id":"102_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/crab/crab_optical.jpg",
          "id":"102_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/crab/crab_ir.jpg",
          "id":"102_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/crab/crab_radio.jpg",
          "id":"102_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/crab/crab_uv.jpg",
          "id":"102_uv",
          "layer":"uv"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/crab/crab_layout.jpg",
          "id":"102_layout",
          "layer":"layout"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/perseus/perseus.jpg",
      "title":"Perseus Cluster",
      "description":"Scientists have found a vast wave of hot gas in the Perseus galaxy cluster spanning some 200,000 light years.",
      "url":"https://chandra.harvard.edu/photo/2017/perseus",
      "id":"103",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/clusters/clusters_a262_comp.jpg",
      "title":"Abell 262",
      "description":"Astronomers used Chandra observations of 13 galaxy clusters to study the properties of dark matter.",
      "url":"https://chandra.harvard.edu/photo/2017/clusters",
      "id":"104",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/clusters/clusters_a262_comp.jpg",
          "id":"104_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/clusters/clusters_a262_xray.jpg",
          "id":"104_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/clusters/clusters_a262_optical.jpg",
          "id":"104_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/clusters/clusters_a383_comp.jpg",
          "id":"104_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/clusters/clusters_a383_xray.jpg",
          "id":"104_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/clusters/clusters_a383_optical.jpg",
          "id":"104_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/clusters/clusters_a1413_comp.jpg",
          "id":"104_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/clusters/clusters_a1413_xray.jpg",
          "id":"104_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/clusters/clusters_a1413_optical.jpg",
          "id":"104_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/clusters/clusters_a2390_comp.jpg",
          "id":"104_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/clusters/clusters_a2390_xray.jpg",
          "id":"104_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/clusters/clusters_a2390_optical.jpg",
          "id":"104_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/ngc4696/ngc4696.jpg",
      "title":"NGC 4696",
      "description":"Centaurus Cluster: A cluster of galaxies located about 145 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/ngc4696",
      "id":"105",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/ngc4696/ngc4696_xray.jpg",
          "id":"105_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/ngc4696/ngc4696_optical.jpg",
          "id":"105_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/ngc4696/ngc4696_radio.jpg",
          "id":"105_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/ngc4696/ngc4696_norm_nopts.jpg",
          "id":"105_nopts",
          "layer":"nopts"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/ngc4696/ngc4696_norm_nolabels_nopts.jpg",
          "id":"105_nopts",
          "layer":"nopts"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/ngc4696/ngc4696_metallicity_nopts.png",
          "id":"105_nopts",
          "layer":"nopts"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/ngc4696/ngc4696_xray-3col.jpg",
          "id":"105_xray-3col",
          "layer":"xray-3col"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1.jpg",
      "title":"CDF-S Transient",
      "description":"A source located in the Chandra Deep Field-South (CDF-S) that displays extraordinary properties.",
      "url":"https://chandra.harvard.edu/photo/2017/cdfsxt1",
      "id":"106",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1_xray_layout.jpg",
          "id":"106_layout",
          "layer":"layout"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1_xray_field.jpg",
          "id":"106_field",
          "layer":"field"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1_frame_1.jpg",
          "id":"106_1",
          "layer":"1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1_frame_2.jpg",
          "id":"106_2",
          "layer":"2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1_frame_3.jpg",
          "id":"106_3",
          "layer":"3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1_frame_4.jpg",
          "id":"106_4",
          "layer":"4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1_frame_5.jpg",
          "id":"106_5",
          "layer":"5"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1_frame_6.jpg",
          "id":"106_6",
          "layer":"6"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1_frame_7.jpg",
          "id":"106_7",
          "layer":"7"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1_frame_8.jpg",
          "id":"106_8",
          "layer":"8"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1_frame_9.jpg",
          "id":"106_9",
          "layer":"9"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1_xray_optical.jpg",
          "id":"106_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfsxt1/cdfsxt1_optical.jpg",
          "id":"106_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/47tuc/47tuc.jpg",
      "title":"47 Tucanae",
      "description":"A binary system in 47 Tucanae, a globular cluster located about 14,800 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/47tuc",
      "id":"107",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/47tuc/47tuc_illus.jpg",
          "id":"107_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/47tuc/47tuc_xray.jpg",
          "id":"107_xray",
          "layer":"xray"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn1987a.jpg",
      "title":"Supernova 1987A",
      "description":"A supernova in the Large Magellanic Cloud about 160,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/sn1987a",
      "id":"108",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn1987a_optical_wide_field.jpg",
          "id":"108_field",
          "layer":"field"
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        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn1987a_xray.jpg",
          "id":"108_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn1987a_optical.jpg",
          "id":"108_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn1987a_ir.jpg",
          "id":"108_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_01.jpg",
          "id":"108_01",
          "layer":"01"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_02.jpg",
          "id":"108_02",
          "layer":"02"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_03.jpg",
          "id":"108_03",
          "layer":"03"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_04.jpg",
          "id":"108_04",
          "layer":"04"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_05.jpg",
          "id":"108_05",
          "layer":"05"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_06.jpg",
          "id":"108_06",
          "layer":"06"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_07.jpg",
          "id":"108_07",
          "layer":"07"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_08.jpg",
          "id":"108_08",
          "layer":"08"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_09.jpg",
          "id":"108_09",
          "layer":"09"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_10.jpg",
          "id":"108_10",
          "layer":"10"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_11.jpg",
          "id":"108_11",
          "layer":"11"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_12.jpg",
          "id":"108_12",
          "layer":"12"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_13.jpg",
          "id":"108_13",
          "layer":"13"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_14.jpg",
          "id":"108_14",
          "layer":"14"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_15.jpg",
          "id":"108_15",
          "layer":"15"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_16.jpg",
          "id":"108_16",
          "layer":"16"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_17.jpg",
          "id":"108_17",
          "layer":"17"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_18.jpg",
          "id":"108_18",
          "layer":"18"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_19.jpg",
          "id":"108_19",
          "layer":"19"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_20.jpg",
          "id":"108_20",
          "layer":"20"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_21.jpg",
          "id":"108_21",
          "layer":"21"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_22.jpg",
          "id":"108_22",
          "layer":"22"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_23.jpg",
          "id":"108_23",
          "layer":"23"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_24.jpg",
          "id":"108_24",
          "layer":"24"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_25.jpg",
          "id":"108_25",
          "layer":"25"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_26.jpg",
          "id":"108_26",
          "layer":"26"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_27.jpg",
          "id":"108_27",
          "layer":"27"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_28.jpg",
          "id":"108_28",
          "layer":"28"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_29.jpg",
          "id":"108_29",
          "layer":"29"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn87a_frame_30.jpg",
          "id":"108_30",
          "layer":"30"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn1987a_optical_xray_crop.jpg",
          "id":"108_crop",
          "layer":"crop"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn1987a_illus.jpg",
          "id":"108_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn1987a_3drb.jpg",
          "id":"108_3drb",
          "layer":"3drb"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/sn1987a/sn1987a_3dsilver.jpg",
          "id":"108_3dsilver",
          "layer":"3dsilver"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/tidal/tidal.jpg",
      "title":"XJ1500+0154",
      "description":"An X-ray source located in a small galaxy about 1.8 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/tidal",
      "id":"109",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/tidal/tidal_illus.jpg",
          "id":"109_illus",
          "layer":"illus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/tidal/tidal_xray.jpg",
          "id":"109_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/tidal/tidal_optical.jpg",
          "id":"109_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/tidal/tidal_xray_optical.jpg",
          "id":"109_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/tidal/tidal_inset_xray.jpg",
          "id":"109_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/tidal/tidal_inset_optical.jpg",
          "id":"109_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/geminga/geminga_comp.jpg",
      "title":"Geminga",
      "description":"A pulsar about 800 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2017/geminga",
      "id":"110",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/geminga/geminga_comp.jpg",
          "id":"110_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/geminga/geminga_xray.jpg",
          "id":"110_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/geminga/geminga_ir.jpg",
          "id":"110_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/geminga/geminga_b0355.jpg",
          "id":"110_b0355",
          "layer":"b0355"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/geminga/geminga_b0355_xray.jpg",
          "id":"110_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/geminga/geminga_b0355_ir.jpg",
          "id":"110_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/geminga/geminga_illus1.jpg",
          "id":"110_illus1",
          "layer":"illus1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/geminga/geminga_illus2.jpg",
          "id":"110_illus2",
          "layer":"illus2"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/a3411/a3411.jpg",
      "title":"Abell 3411 and 3412",
      "description":"A pair of colliding galaxy clusters about 2 billion light years away.",
      "url":"https://chandra.harvard.edu/photo/2017/a3411",
      "id":"111",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/a3411/a3411_xray.jpg",
          "id":"111_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/a3411/a3411_optical.jpg",
          "id":"111_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/a3411/a3411_radio.jpg",
          "id":"111_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/a3411/a3411_cluster_merger.gif",
          "id":"111_merger.gif",
          "layer":"merger.gif"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/a3411/a3411_black_hole.gif",
          "id":"111_hole.gif",
          "layer":"hole.gif"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/a3411/a3411_multi.gif",
          "id":"111_multi.gif",
          "layer":"multi.gif"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2017/cdfs/cdfs.jpg",
      "title":"Chandra Deep Field South ",
      "description":"The deepest X-ray image, containing objects at a distance of nearly 13 billion light years.",
      "url":"https://chandra.harvard.edu/photo/2017/cdfs",
      "id":"112",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfs/cdfs_detail_2panel.jpg",
          "id":"112_2panel",
          "layer":"2panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2017/cdfs/cdfs_xray_opt_2panel.jpg",
          "id":"112_2panel",
          "layer":"2panel"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/ngc6357/ngc6357.jpg",
      "title":"NGC 6357",
      "description":"A star formation region about 5,500 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/ngc6357",
      "id":"113",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc6357/ngc6357_xray.jpg",
          "id":"113_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc6357/ngc6357_halpha.jpg",
          "id":"113_halpha",
          "layer":"halpha"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc6357/ngc6357_ir.jpg",
          "id":"113_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/spt0346/spt0346.jpg",
      "title":"SPT 0346-52",
      "description":"A galaxy undergoing extreme star formation about 12.7 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/spt0346",
      "id":"114",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/spt0346/spt0346_comp.jpg",
          "id":"114_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/spt0346/spt0346_xray.jpg",
          "id":"114_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/spt0346/spt0346_radio.jpg",
          "id":"114_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/spt0346/spt0346_optical.jpg",
          "id":"114_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/spt0346/spt0346_ir.jpg",
          "id":"114_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/spt0346/spt0346_simulation.jpg",
          "id":"114_simulation",
          "layer":"simulation"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/cygx3/cygx3.jpg",
      "title":"Cyg X-3's Little Friend",
      "description":"A small cloud of dust and gas containing a new star being formed about 20,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/cygx3",
      "id":"115",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/cygx3/cygx3_xray.jpg",
          "id":"115_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/cygx3/cygx3_radio.jpg",
          "id":"115_radio",
          "layer":"radio"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/mrk1018/mrk1018.jpg",
      "title":"Markarian 1018",
      "description":"An active galaxy located about 590 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/mrk1018",
      "id":"116",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/mrk1018/mrk1018_xray.jpg",
          "id":"116_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/mrk1018/mrk1018_optical.jpg",
          "id":"116_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/ngc5128/ngc5128.jpg",
      "title":"NGC 5128",
      "description":"An elliptical galaxy, also known as Centaurus A, located about 12 million light years away.",
      "url":"https://chandra.harvard.edu/photo/2016/ngc5128",
      "id":"117",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5128/ngc5128_im1.jpg",
          "id":"117_im1",
          "layer":"im1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5128/ngc5128_im2.jpg",
          "id":"117_im2",
          "layer":"im2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5128/ngc5128_im3.jpg",
          "id":"117_im3",
          "layer":"im3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5128/ngc5128_im4.jpg",
          "id":"117_im4",
          "layer":"im4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5128/ngc5128_im5.jpg",
          "id":"117_im5",
          "layer":"im5"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5128/ngc5128_im6.jpg",
          "id":"117_im6",
          "layer":"im6"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5128/ngc5128_im7.jpg",
          "id":"117_im7",
          "layer":"im7"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5128/ngc5128_animated.gif",
          "id":"117_animated.gif",
          "layer":"animated.gif"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5128/ngc5128_cena.jpg",
          "id":"117_cena",
          "layer":"cena"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/archives/archives_wd2.jpg",
      "title":"Westerlund 2",
      "description":"Six objects ranging in location from about 20,000 to nearly 3 billion light years away.",
      "url":"https://chandra.harvard.edu/photo/2016/archives",
      "id":"118",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_wd2.jpg",
          "id":"118_wd2",
          "layer":"wd2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_wd2_xray.jpg",
          "id":"118_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_wd2_optical.jpg",
          "id":"118_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_3c31.jpg",
          "id":"118_3c31",
          "layer":"3c31"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_3c31_xray.jpg",
          "id":"118_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_3c31_optical.jpg",
          "id":"118_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_psrj1509.jpg",
          "id":"118_psrj1509",
          "layer":"psrj1509"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_psrj1509_xray.jpg",
          "id":"118_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_psrj1509_optical.jpg",
          "id":"118_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_psrj1509_radio.jpg",
          "id":"118_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_a665.jpg",
          "id":"118_a665",
          "layer":"a665"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_a665_xray.jpg",
          "id":"118_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_a665_optical.jpg",
          "id":"118_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_a665_radio.jpg",
          "id":"118_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_toothbrush.jpg",
          "id":"118_toothbrush",
          "layer":"toothbrush"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_toothbrush_xray.jpg",
          "id":"118_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_toothbrush_optical.jpg",
          "id":"118_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_toothbrush_radio.jpg",
          "id":"118_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_toothbrush_lens.jpg",
          "id":"118_lens",
          "layer":"lens"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_ctb37a.jpg",
          "id":"118_ctb37a",
          "layer":"ctb37a"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_ctb37a_xray.jpg",
          "id":"118_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_ctb37a_radio.jpg",
          "id":"118_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/archives/archives_ctb37a_ir.jpg",
          "id":"118_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/xj1417/xj1417.jpg",
      "title":"XJ1417+52",
      "description":"A black hole found in the outer regions of a galaxy about 4.5 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/xj1417",
      "id":"119",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/xj1417/xj1417_xray.jpg",
          "id":"119_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/xj1417/xj1417_optical.jpg",
          "id":"119_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/pluto/pluto.jpg",
      "title":"Pluto",
      "description":"A dwarf planet in the outer regions of the Solar System.",
      "url":"https://chandra.harvard.edu/photo/2016/pluto",
      "id":"120",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/pluto/pluto_nolabel.jpg",
          "id":"120_nolabel",
          "layer":"nolabel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/pluto/pluto_xray.jpg",
          "id":"120_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/pluto/pluto_optical.jpg",
          "id":"120_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/rcw103/rcw103.jpg",
      "title":"RCW 103",
      "description":"A neutron star located in the center of the RCW 103 supernova remnant about 10,700 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/rcw103",
      "id":"121",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/rcw103/rcw103_xray.jpg",
          "id":"121_xray",
          "layer":"xray"
        },
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          "src":"https://chandra.harvard.edu/photo/2016/rcw103/rcw103_optical.jpg",
          "id":"121_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/clj1001/clj1001.jpg",
      "title":"CL J1001",
      "description":"A galaxy cluster located about 11.1 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/clj1001",
      "id":"122",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/clj1001/clj1001_xray.jpg",
          "id":"122_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/clj1001/clj1001_ir.jpg",
          "id":"122_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/clj1001/clj1001_radio.jpg",
          "id":"122_radio",
          "layer":"radio"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/g11/g11.jpg",
      "title":"G11.2-0.3",
      "description":"A supernova in the Milky Way about 16,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/g11",
      "id":"123",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/g11/g11_xray.jpg",
          "id":"123_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/g11/g11_optical.jpg",
          "id":"123_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/ic2497/ic2497.jpg",
      "title":"IC 2497",
      "description":"A galaxy and a cloud of cool gas located about 680 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/ic2497",
      "id":"124",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/ic2497/ic2497_xray_opt.jpg",
          "id":"124_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ic2497/ic2497_xray.jpg",
          "id":"124_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ic2497/ic2497_optical.jpg",
          "id":"124_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/gj3253/gj3253.jpg",
      "title":"GJ 3253",
      "description":"A low-mass red dwarf star about 31 light years away from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/gj3253",
      "id":"125",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/gj3253/gj3253_ill.jpg",
          "id":"125_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/gj3253/gj3253_ill2.jpg",
          "id":"125_ill2",
          "layer":"ill2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/gj3253/dwarfs_gj3253_xray.jpg",
          "id":"125_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/gj3253/dwarfs_gj3253_optical.jpg",
          "id":"125_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/gj3253/dwarfs_gj3253_xray_optical.jpg",
          "id":"125_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/grb/grb.jpg",
      "title":"GRB 140903A",
      "description":"A gamma-ray burst in a galaxy about 3.9 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/grb",
      "id":"126",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/grb/grb_illG.jpg",
          "id":"126_illG",
          "layer":"illG"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/grb/grb_xray.jpg",
          "id":"126_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/grb/grb_optical.jpg",
          "id":"126_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/grb/grb_xray_optical.jpg",
          "id":"126_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/vla/vla.jpg",
      "title":"VLA J2130+12",
      "description":"A binary system containing a quiescent black hole about 7,200 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/vla",
      "id":"127",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/vla/vla_xray_opt.jpg",
          "id":"127_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/vla/vla_xray.jpg",
          "id":"127_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/vla/vla_optical.jpg",
          "id":"127_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/vla/vla_radio_overlay.jpg",
          "id":"127_overlay",
          "layer":"overlay"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/vla/vla_xray_overlay.jpg",
          "id":"127_overlay",
          "layer":"overlay"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/twhya/twhya.jpg",
      "title":"TW Hya Association",
      "description":"A group of stars which on average is about 160 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/twhya",
      "id":"128",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/twhya/twhya_pan.jpg",
          "id":"128_pan",
          "layer":"pan"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/twhya/twhya_twa8_xray.jpg",
          "id":"128_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/twhya/twhya_twa8_ir.jpg",
          "id":"128_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/twhya/twhya_twa9_xray.jpg",
          "id":"128_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/twhya/twhya_twa9_ir.jpg",
          "id":"128_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/twhya/twhya_twa13_xray.jpg",
          "id":"128_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/twhya/twhya_twa13_ir.jpg",
          "id":"128_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/twhya/twhya_illM.jpg",
          "id":"128_illM",
          "layer":"illM"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/twhya/twhya_illP.jpg",
          "id":"128_illP",
          "layer":"illP"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/bhseeds/bhseeds.jpg",
      "title":"GOODS-S 29323",
      "description":"One of two distant supermassive black hole \"seed\" candidates.",
      "url":"https://chandra.harvard.edu/photo/2016/bhseeds",
      "id":"129",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/bhseeds/bhseeds_29323.jpg",
          "id":"129_29323",
          "layer":"29323"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/bhseeds/bhseeds_29323_xray.jpg",
          "id":"129_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/bhseeds/bhseeds_29323_optical.jpg",
          "id":"129_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/bhseeds/bhseeds_33160.jpg",
          "id":"129_33160",
          "layer":"33160"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/bhseeds/bhseeds_33160_xray.jpg",
          "id":"129_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/bhseeds/bhseeds_33160_optical.jpg",
          "id":"129_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/bhseeds/bhseeds_ill1A.jpg",
          "id":"129_ill1A",
          "layer":"ill1A"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/bhseeds/bhseeds_ill2A.jpg",
          "id":"129_ill2A",
          "layer":"ill2A"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/bhseeds/bhseeds_illD.jpg",
          "id":"129_illD",
          "layer":"illD"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/bhseeds/bhseeds_multiAlabel.jpg",
          "id":"129_multiAlabel",
          "layer":"multiAlabel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/bhseeds/bhseeds_multiAnolabel.jpg",
          "id":"129_multiAnolabel",
          "layer":"multiAnolabel"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho.jpg",
      "title":"Tycho's Supernova Remnant",
      "description":"A supernova remnant located about 10,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/tycho",
      "id":"130",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho_2000_xray.jpg",
          "id":"130_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho_2003_xray.jpg",
          "id":"130_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho_2007_xray.jpg",
          "id":"130_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho_2009_xray.jpg",
          "id":"130_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho_2015_xray.jpg",
          "id":"130_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho_2000.jpg",
          "id":"130_2000",
          "layer":"2000"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho_2003.jpg",
          "id":"130_2003",
          "layer":"2003"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho_2007.jpg",
          "id":"130_2007",
          "layer":"2007"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho_2009.jpg",
          "id":"130_2009",
          "layer":"2009"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho_2015.jpg",
          "id":"130_2015",
          "layer":"2015"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho_radio_1983.jpg",
          "id":"130_1983",
          "layer":"1983"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho_radio_1994.jpg",
          "id":"130_1994",
          "layer":"1994"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/tycho/tycho_radio_2013.jpg",
          "id":"130_2013",
          "layer":"2013"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/clusters/clusters_a1835.jpg",
      "title":"Abell 1835",
      "description":"From a sample of over 300 galaxy clusters used to study dark energy.",
      "url":"https://chandra.harvard.edu/photo/2016/clusters",
      "id":"131",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/clusters/clusters_a1835.jpg",
          "id":"131_a1835",
          "layer":"a1835"
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        {
          "src":"https://chandra.harvard.edu/photo/2016/clusters/clusters_a1835_xray.jpg",
          "id":"131_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/clusters/clusters_a1835_optical.jpg",
          "id":"131_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/clusters/clusters_ms1455.jpg",
          "id":"131_ms1455",
          "layer":"ms1455"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/clusters/clusters_ms1455_xray.jpg",
          "id":"131_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/clusters/clusters_ms1455_optical.jpg",
          "id":"131_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/clusters/clusters_rxj1347.jpg",
          "id":"131_rxj1347",
          "layer":"rxj1347"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/clusters/clusters_rxj1347_xray.jpg",
          "id":"131_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/clusters/clusters_rxj1347_optical.jpg",
          "id":"131_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/clusters/clusters_zwcl3146.jpg",
          "id":"131_zwcl3146",
          "layer":"zwcl3146"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/clusters/clusters_zwcl3146_xray.jpg",
          "id":"131_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/clusters/clusters_zwcl3146_optical.jpg",
          "id":"131_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/comets/comets_ison.jpg",
      "title":"Comet ISON",
      "description":"Two comets when they were relatively close to the Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/comets",
      "id":"132",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/comets/comets_ison_xray.jpg",
          "id":"132_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/comets/comets_ison_optical.jpg",
          "id":"132_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/comets/comets_panstarrs_xray.jpg",
          "id":"132_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/comets/comets_panstarrs_optical.jpg",
          "id":"132_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/g19/g19.jpg",
      "title":"G1.9+0.3",
      "description":"A supernova remnant located about 28,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/g19",
      "id":"133",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/jupiter/jupiter.jpg",
      "title":"Jupiter",
      "description":"The fifth planet from the Sun and the largest in our Solar System.",
      "url":"https://chandra.harvard.edu/photo/2016/jupiter",
      "id":"134",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/jupiter/jupiter_2oct.jpg",
          "id":"134_2oct",
          "layer":"2oct"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/jupiter/jupiter_4oct.jpg",
          "id":"134_4oct",
          "layer":"4oct"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/jupiter/jupiter_2oct_xray.jpg",
          "id":"134_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/jupiter/jupiter_4oct_xray.jpg",
          "id":"134_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/jupiter/jupiter_optical.jpg",
          "id":"134_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/jupiter/jupiter_ill.jpg",
          "id":"134_ill",
          "layer":"ill"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/frontier/frontier_macsj0416.jpg",
      "title":"MACS J0416.1-2403",
      "description":"Two galaxy clusters located about 4.3 billion and 5.4 billion light years away respectively.",
      "url":"https://chandra.harvard.edu/photo/2016/frontier",
      "id":"135",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/frontier/frontier_macsj0416.jpg",
          "id":"135_macsj0416",
          "layer":"macsj0416"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/frontier/frontier_macsj0416_xray.jpg",
          "id":"135_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/frontier/frontier_macsj0416_optical.jpg",
          "id":"135_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/frontier/frontier_macsj0416_radio.jpg",
          "id":"135_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/frontier/frontier_macsj0717.jpg",
          "id":"135_macsj0717",
          "layer":"macsj0717"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/frontier/frontier_macsj0717_xray.jpg",
          "id":"135_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/frontier/frontier_macsj0717_optical.jpg",
          "id":"135_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/frontier/frontier_macsj0717_radio.jpg",
          "id":"135_radio",
          "layer":"radio"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/b30727/b30727.jpg",
      "title":"B3 0727+409",
      "description":"A black hole with an X-ray jet about 11 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/b30727",
      "id":"136",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/b30727/b30727_xray.jpg",
          "id":"136_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/b30727/b30727_optical.jpg",
          "id":"136_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/pictora/pictora.jpg",
      "title":"Pictor A",
      "description":"A galaxy with an extensive jet located about 500 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/pictora",
      "id":"137",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/pictora/pictora_xray.jpg",
          "id":"137_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/pictora/pictora_radio.jpg",
          "id":"137_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/pictora/pictora_annotated.jpg",
          "id":"137_annotated",
          "layer":"annotated"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/idcs1426/idcs1426.jpg",
      "title":"IDCS J1426.5+3508",
      "description":"A massive galaxy cluster located about 10 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/idcs1426",
      "id":"138",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/idcs1426/idcs1426_xray.jpg",
          "id":"138_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/idcs1426/idcs1426_optical.jpg",
          "id":"138_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/idcs1426/idcs1426_ir.jpg",
          "id":"138_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2016/ngc5195/ngc5195.jpg",
      "title":"NGC 5195",
      "description":"A small galaxy merging with a larger spiral galaxy about 26 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2016/ngc5195",
      "id":"139",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5195/ngc5195_arcs.jpg",
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          "layer":"arcs"
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        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5195/ngc5195_full.jpg",
          "id":"139_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5195/ngc5195_full_xray.jpg",
          "id":"139_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5195/ngc5195_full_xray3color.jpg",
          "id":"139_xray3color",
          "layer":"xray3color"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5195/ngc5195_full_optical.jpg",
          "id":"139_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2016/ngc5195/ngc5195_full_optical3color.jpg",
          "id":"139_optical3color",
          "layer":"optical3color"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/z8338/z8338.jpg",
      "title":"Zwicky 8338",
      "description":"A galaxy cluster located almost 700 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/z8338",
      "id":"140",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2015/z8338/z8338_annotated.jpg",
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          "src":"https://chandra.harvard.edu/photo/2015/z8338/z8338_xray.jpg",
          "id":"140_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/z8338/z8338_optical.jpg",
          "id":"140_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/ic443/ic443.jpg",
      "title":"IC 443",
      "description":"A supernova remnant nicknamed the \"Jellyfish Nebula\" located about 5,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/ic443",
      "id":"141",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/ic443/ic443_optical.jpg",
          "id":"141_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/ic443/ic443_inset_overlay.jpg",
          "id":"141_overlay",
          "layer":"overlay"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/ic443/ic443_inset.jpg",
          "id":"141_inset",
          "layer":"inset"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/ic443/ic443_inset_halpha.jpg",
          "id":"141_halpha",
          "layer":"halpha"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/ic443/ic443_inset_oiii.jpg",
          "id":"141_oiii",
          "layer":"oiii"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/ic443/ic443_inset_xray.jpg",
          "id":"141_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/ic443/ic443_inset_optical.jpg",
          "id":"141_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/cheshirecat/cheshirecat.jpg",
      "title":"SDSS J103842.59+484917.7",
      "description":"A group of galaxies nicknamed the \"Cheshire Cat\" about 4.6 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/cheshirecat",
      "id":"142",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/cheshirecat/cheshirecat_overlay.jpg",
          "id":"142_overlay",
          "layer":"overlay"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/cheshirecat/cheshirecat_xray.jpg",
          "id":"142_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/cheshirecat/cheshirecat_optical.jpg",
          "id":"142_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/dori/dori.jpg",
      "title":"Delta Orionis",
      "description":"The westernmost star in the \"belt\" in the constellation of Orion",
      "url":"https://chandra.harvard.edu/photo/2015/dori",
      "id":"143",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/dori/dori_xray.jpg",
          "id":"143_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/dori/dori_optical.jpg",
          "id":"143_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/dori/dori_ill.jpg",
          "id":"143_ill",
          "layer":"ill"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/tidal/tidal.jpg",
      "title":"ASASSN-14li",
      "description":"A tidal disruption in a galaxy about 290 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/tidal",
      "id":"144",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/tidal/tidal_ill.jpg",
          "id":"144_ill",
          "layer":"ill"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/tidal/tidal_spectrum.jpg",
          "id":"144_spectrum",
          "layer":"spectrum"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/archives/archives_w44.jpg",
      "title":"W44",
      "description":"Six objects ranging in location from within the Milky Way to billions of light years away.",
      "url":"https://chandra.harvard.edu/photo/2015/archives",
      "id":"145",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_w44.jpg",
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          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_w44_xray.jpg",
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          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_w44_ir.jpg",
          "id":"145_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_sn1987a.jpg",
          "id":"145_sn1987a",
          "layer":"sn1987a"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_sn1987a_xray.jpg",
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          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_sn1987a_optical.jpg",
          "id":"145_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_kes79.jpg",
          "id":"145_kes79",
          "layer":"kes79"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_kes79_xray.jpg",
          "id":"145_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_kes79_optical.jpg",
          "id":"145_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_ms0735.jpg",
          "id":"145_ms0735",
          "layer":"ms0735"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_ms0735_xray.jpg",
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          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_ms0735_optical.jpg",
          "id":"145_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_ms0735_radio.jpg",
          "id":"145_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_3c295.jpg",
          "id":"145_3c295",
          "layer":"3c295"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_3c295_xray.jpg",
          "id":"145_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_3c295_optical.jpg",
          "id":"145_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_gneb.jpg",
          "id":"145_gneb",
          "layer":"gneb"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_gneb_xray.jpg",
          "id":"145_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/archives/archives_gneb_optical.jpg",
          "id":"145_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/phoenix/phoenix.jpg",
      "title":"Phoenix Cluster",
      "description":"A galaxy cluster nicknamed the \"Phoenix Cluster\" located about 5.7 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/phoenix",
      "id":"146",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/phoenix/phoenix_xray.jpg",
          "id":"146_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/phoenix/phoenix_optical.jpg",
          "id":"146_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/phoenix/phoenix_optical_radio.jpg",
          "id":"146_radio",
          "layer":"radio"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/sgra2/sgra2.jpg",
      "title":"Sagittarius A*",
      "description":"The 4-million-solar-mass black hole at the center of the Milky Way.",
      "url":"https://chandra.harvard.edu/photo/2015/sgra2",
      "id":"147",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/sgra2/sgra2_nolabel.jpg",
          "id":"147_nolabel",
          "layer":"nolabel"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/sgra2/sgra2_2panel.jpg",
          "id":"147_2panel",
          "layer":"2panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/sgra2/sgra2_2panel_nolabel.jpg",
          "id":"147_nolabel",
          "layer":"nolabel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/sgra2/sgra2_illP1.jpg",
          "id":"147_illP1",
          "layer":"illP1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/sgra2/sgra2_illP2.jpg",
          "id":"147_illP2",
          "layer":"illP2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/sgra2/sgra2_crop.jpg",
          "id":"147_crop",
          "layer":"crop"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/a1033/a1033.jpg",
      "title":"Abell 1033",
      "description":"A collision of two galaxy clusters located about 1.6 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/a1033",
      "id":"148",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/a1033/a1033_xray.jpg",
          "id":"148_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/a1033/a1033_optical.jpg",
          "id":"148_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/a1033/a1033_radio.jpg",
          "id":"148_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/a1033/a1033_density.jpg",
          "id":"148_density",
          "layer":"density"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/rgg118/rgg118.jpg",
      "title":"RGG 118",
      "description":"The smallest supermassive black hole ever detected in the center of a galaxy.",
      "url":"https://chandra.harvard.edu/photo/2015/rgg118",
      "id":"149",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/rgg118/rgg118_xray.jpg",
          "id":"149_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/rgg118/rgg118_optical.jpg",
          "id":"149_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/rgg118//graphics/resources/illustrations/blackholes/agn_illustration.jpg",
          "id":"149_illustration",
          "layer":"illustration"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/psrb1259/psrb1259.jpg",
      "title":"PSR B1259-63",
      "description":"A binary system with a pulsar and massive star in orbit around each other",
      "url":"https://chandra.harvard.edu/photo/2015/psrb1259",
      "id":"150",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/psrb1259/psrB1259_xray.jpg",
          "id":"150_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/psrb1259/psrB1259_2011.jpg",
          "id":"150_2011",
          "layer":"2011"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/psrb1259/psrB1259_2013.jpg",
          "id":"150_2013",
          "layer":"2013"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/psrb1259/psrB1259_2014.jpg",
          "id":"150_2014",
          "layer":"2014"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/psrb1259/psrb1259_cartoon.jpg",
          "id":"150_cartoon",
          "layer":"cartoon"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/ngc1333/ngc1333.jpg",
      "title":"NGC 1333",
      "description":"A young star cluster about 780 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/ngc1333",
      "id":"151",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/ngc1333/ngc1333_xray.jpg",
          "id":"151_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/ngc1333/ngc1333_ir.jpg",
          "id":"151_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/ngc1333/ngc1333_optical.jpg",
          "id":"151_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/cirx1/cirx1.jpg",
      "title":"Circinus X-1",
      "description":"A system with a neutron star in orbit with a massive star about 30,700 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/cirx1",
      "id":"152",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/cirx1/cirx1_xray.jpg",
          "id":"152_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/cirx1/cirx1_optical.jpg",
          "id":"152_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/cirx1/cirx1_cartoon.jpg",
          "id":"152_cartoon",
          "layer":"cartoon"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/ngc5813/ngc5813.jpg",
      "title":"NGC 5813",
      "description":"A group of galaxies located about 105 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/ngc5813",
      "id":"153",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2015/ngc5813/ngc5813_xray.jpg",
          "id":"153_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/ngc5813/ngc5813_optical.jpg",
          "id":"153_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/ngc5813/ngc5813_raw.jpg",
          "id":"153_raw",
          "layer":"raw"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/quantum/quantum_br0331.jpg",
      "title":"BR 0331-1622",
      "description":"Extremely tiny bubbles and irregularities in space-time predicted by certain theories.",
      "url":"https://chandra.harvard.edu/photo/2015/quantum",
      "id":"154",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/quantum/quantum_6pan.jpg",
          "id":"154_6pan",
          "layer":"6pan"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/quantum/quantum_ill.jpg",
          "id":"154_ill",
          "layer":"ill"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/sgr1745/sgr1745.jpg",
      "title":"SGR 1745-2900",
      "description":"A magnetar as close as about 2 trillion miles to the Milky Way's supermassive black hole.",
      "url":"https://chandra.harvard.edu/photo/2015/sgr1745",
      "id":"155",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/sgr1745/sgr1745_blank.jpg",
          "id":"155_blank",
          "layer":"blank"
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          "src":"https://chandra.harvard.edu/photo/2015/sgr1745/sgr1745_2panel_blank.jpg",
          "id":"155_blank",
          "layer":"blank"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/3quasars/3quasars_152156.jpg",
      "title":"152156.48+520238.5",
      "description":"Three of 51 distant quasars ranging from about 5 billion to 11.5 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/3quasars",
      "id":"156",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/3quasars/3quasars_ill.jpg",
          "id":"156_ill",
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          "src":"https://chandra.harvard.edu/photo/2015/3quasars/3quasars_panels.jpg",
          "id":"156_panels",
          "layer":"panels"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/ngc6388/ngc6388.jpg",
      "title":"NGC 6388",
      "description":"A globular cluster about 35,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/ngc6388",
      "id":"157",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/ngc6388/ngc6388_xray.jpg",
          "id":"157_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/ngc6388/ngc6388_optical.jpg",
          "id":"157_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/dark/dark_macsj0416.jpg",
      "title":"MACS J0416.1-2403",
      "description":"Six galaxy clusters that are part of a study of 72 colliding clusters.",
      "url":"https://chandra.harvard.edu/photo/2015/dark",
      "id":"158",
      "layers":[
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          "id":"158_macsj0416",
          "layer":"macsj0416"
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          "id":"158_macsj0152",
          "layer":"macsj0152"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_macsj0717.jpg",
          "id":"158_macsj0717",
          "layer":"macsj0717"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_a370.jpg",
          "id":"158_a370",
          "layer":"a370"
        },
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          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_a2744.jpg",
          "id":"158_a2744",
          "layer":"a2744"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_zwcl1358.jpg",
          "id":"158_zwcl1358",
          "layer":"zwcl1358"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_macsj0416_xray.jpg",
          "id":"158_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_macsj0152_xray.jpg",
          "id":"158_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_macsj0717_xray.jpg",
          "id":"158_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_a370_xray.jpg",
          "id":"158_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_a2744_xray.jpg",
          "id":"158_xray",
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        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_zwcl1358_xray.jpg",
          "id":"158_xray",
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        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_macsj0416_optical.jpg",
          "id":"158_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_macsj0152_optical.jpg",
          "id":"158_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_macsj0717_optical.jpg",
          "id":"158_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_a370_optical.jpg",
          "id":"158_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_a2744_optical.jpg",
          "id":"158_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/dark/dark_zwcl1358_optical.jpg",
          "id":"158_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/gkper/gkper.jpg",
      "title":"GK Persei",
      "description":"A stellar explosion, called a nova, which is about 1,500 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/gkper",
      "id":"159",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/gkper/gkper_xray.jpg",
          "id":"159_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/gkper/gkper_optical.jpg",
          "id":"159_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/gkper/gkper_radio.jpg",
          "id":"159_radio",
          "layer":"radio"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/a2597/a2597.jpg",
      "title":"Abell 2597",
      "description":"A galaxy cluster located about one billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/a2597",
      "id":"160",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/a2597/a2597_xray.jpg",
          "id":"160_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/a2597/a2597_optical.jpg",
          "id":"160_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/a2597/a2597_halpha.jpg",
          "id":"160_halpha",
          "layer":"halpha"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/ngc2276/ngc2276.jpg",
      "title":"NGC 2276",
      "description":"A galaxy about 100 million light years away with an intermediate-mass black hole in one of its spiral arms.",
      "url":"https://chandra.harvard.edu/photo/2015/ngc2276",
      "id":"161",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/ngc2276/ngc2276_comp.jpg",
          "id":"161_comp",
          "layer":"comp"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/ngc2276/ngc2276_xray.jpg",
          "id":"161_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/ngc2276/ngc2276_optical.jpg",
          "id":"161_optical",
          "layer":"optical"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/ngc2276/ngc2276_radio.jpg",
          "id":"161_radio",
          "layer":"radio"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/g299/g299.jpg",
      "title":"G299.2-2.9",
      "description":"A supernova remnant in the Milky Way about 16,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/g299",
      "id":"162",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/g299/g299_xray.jpg",
          "id":"162_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/g299/g299_ir.jpg",
          "id":"162_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/g299/g299_B_1.4-3.0keV.jpg",
          "id":"162_1.4-3.0keV",
          "layer":"1.4-3.0keV"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/g299/g299_G_0.72-1.4keV.jpg",
          "id":"162_0.72-1.4keV",
          "layer":"0.72-1.4keV"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/g299/g299_R_0.4-0.72keV.jpg",
          "id":"162_0.4-0.72keV",
          "layer":"0.4-0.72keV"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_m51.jpg",
      "title":"Whirlpool Galaxy",
      "description":"Five objects at various distances that have been observed by Chandra",
      "url":"https://chandra.harvard.edu/photo/2015/iyl",
      "id":"163",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_m51.jpg",
          "id":"163_m51",
          "layer":"m51"
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          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_m51_xray.jpg",
          "id":"163_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_m51_optical.jpg",
          "id":"163_optical",
          "layer":"optical"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_m51_ir.jpg",
          "id":"163_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_m51_uv.jpg",
          "id":"163_uv",
          "layer":"uv"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_snr0519.jpg",
          "id":"163_snr0519",
          "layer":"snr0519"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_snr0519_xray.jpg",
          "id":"163_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_snr0519_optical.jpg",
          "id":"163_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_msh1162.jpg",
          "id":"163_msh1162",
          "layer":"msh1162"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_msh1162_xray.jpg",
          "id":"163_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_msh1162_optical.jpg",
          "id":"163_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_msh1162_radio.jpg",
          "id":"163_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_cyga.jpg",
          "id":"163_cyga",
          "layer":"cyga"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_cyga_xray.jpg",
          "id":"163_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_cyga_optical.jpg",
          "id":"163_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_cyga_radio.jpg",
          "id":"163_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_rcw86.jpg",
          "id":"163_rcw86",
          "layer":"rcw86"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_rcw86_xray.jpg",
          "id":"163_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/iyl/iyl_rcw86_optical.jpg",
          "id":"163_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2015/sgra/sgra.jpg",
      "title":"Sagittarius A*",
      "description":"The supermassive black hole at the center of the Milky Way about 26,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2015/sgra",
      "id":"164",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2015/sgra/sgra_no_overlay.jpg",
          "id":"164_overlay",
          "layer":"overlay"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2015/sgra/sgra_flare_composite.gif",
          "id":"164_composite.gif",
          "layer":"composite.gif"
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        {
          "src":"https://chandra.harvard.edu/photo/2015/sgra/sgra_flare_movie.gif",
          "id":"164_movie.gif",
          "layer":"movie.gif"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/xdcp004/xdcp004.jpg",
      "title":"il Gioiello Cluster",
      "description":"A galaxy cluster located about 9.6 billion light years from Earth",
      "url":"https://chandra.harvard.edu/photo/2014/xdcp004",
      "id":"165",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/xdcp004/xdcp004_xray.jpg",
          "id":"165_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/xdcp004/xdcp004_optical.jpg",
          "id":"165_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/xdcp004/xdcp004_ir.jpg",
          "id":"165_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/ngc2207/ngc2207.jpg",
      "title":"NGC 2207",
      "description":"NGC 2207 and IC 2163 are two spiral galaxies in the process of merging.",
      "url":"https://chandra.harvard.edu/photo/2014/ngc2207",
      "id":"166",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/ngc2207/ngc2207_xray.jpg",
          "id":"166_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/ngc2207/ngc2207_optical.jpg",
          "id":"166_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/ngc2207/ngc2207_ir.jpg",
          "id":"166_ir",
          "layer":"ir"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/msh11g327/msh11g327_g327.jpg",
      "title":"G327.1-1.1",
      "description":"An outward-moving shock wave and a bright pulsar wind nebula",
      "url":"https://chandra.harvard.edu/photo/2014/msh11g327",
      "id":"167",
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        {
          "src":"https://chandra.harvard.edu/photo/2014/msh11g327/msh11g327_g327.jpg",
          "id":"167_g327",
          "layer":"g327"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/msh11g327/msh11g327_msh1162.jpg",
          "id":"167_msh1162",
          "layer":"msh1162"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/msh11g327/ms1162_north.jpg",
          "id":"167_north",
          "layer":"north"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/sgra/sgra.jpg",
      "title":"Sagittarius A*",
      "description":"The Milky Way's supermassive black hole, about 26,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/sgra",
      "id":"168",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/perseusvirgo/perseusvirgo_perseus.jpg",
      "title":"Perseus Cluster",
      "description":"A galaxy cluster about 250 million light years away.",
      "url":"https://chandra.harvard.edu/photo/2014/perseusvirgo",
      "id":"169",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/perseusvirgo/perseus.jpg",
          "id":"169_perseus",
          "layer":"perseus"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/perseusvirgo/virgo.jpg",
          "id":"169_virgo",
          "layer":"virgo"
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      ]
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    {
      "src":"https://chandra.harvard.edu/photo/2014/archives/archives_b1509.jpg",
      "title":"PSR B1509-58",
      "description":"Six images that combine Chandra data with those from other telescopes.",
      "url":"https://chandra.harvard.edu/photo/2014/archives",
      "id":"170",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_b1509.jpg",
          "id":"170_b1509",
          "layer":"b1509"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_b1509_xray.jpg",
          "id":"170_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_b1509_ir.jpg",
          "id":"170_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_rcw38.jpg",
          "id":"170_rcw38",
          "layer":"rcw38"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_rcw38_xray.jpg",
          "id":"170_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_rcw38_ir.jpg",
          "id":"170_ir",
          "layer":"ir"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_rcw38_near_ir.jpg",
          "id":"170_ir",
          "layer":"ir"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_herca.jpg",
          "id":"170_herca",
          "layer":"herca"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_herca_xray.jpg",
          "id":"170_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_herca_optical.jpg",
          "id":"170_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_herca_radio.jpg",
          "id":"170_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_kes73.jpg",
          "id":"170_kes73",
          "layer":"kes73"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_kes73_xray.jpg",
          "id":"170_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_kes73_optical.jpg",
          "id":"170_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_kes73_ir.jpg",
          "id":"170_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_kes73_radio.jpg",
          "id":"170_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_mrk573.jpg",
          "id":"170_mrk573",
          "layer":"mrk573"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_mrk573_xray.jpg",
          "id":"170_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_mrk573_optical.jpg",
          "id":"170_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_mrk573_radio.jpg",
          "id":"170_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_n4736.jpg",
          "id":"170_n4736",
          "layer":"n4736"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_n4736_xray.jpg",
          "id":"170_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_n4736_ir.jpg",
          "id":"170_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_n4736_optical.jpg",
          "id":"170_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_n4736_scale.jpg",
          "id":"170_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_notitles.jpg",
          "id":"170_notitles",
          "layer":"notitles"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_xray.jpg",
          "id":"170_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/archives/archives_xray_notitles.jpg",
          "id":"170_notitles",
          "layer":"notitles"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/m82nu/m82nu.jpg",
      "title":"M82X-2",
      "description":"A source with unusual pulsations in the M82 galaxy about 11.4 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/m82nu",
      "id":"171",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/m82nu/m82nu_xray.jpg",
          "id":"171_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/m82nu/m82nu_optical.jpg",
          "id":"171_optical",
          "layer":"optical"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/m82nu/m82nu_cutout.jpg",
          "id":"171_cutout",
          "layer":"cutout"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/m82nu/m82nu_core.jpg",
          "id":"171_core",
          "layer":"core"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/wasp18/wasp18.jpg",
      "title":"WASP-18",
      "description":"An exoplanet about ten times Jupiter\ufffds mass located some 330 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/wasp18",
      "id":"172",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/wasp18/wasp18_ill.jpg",
          "id":"172_ill",
          "layer":"ill"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/wasp18/wasp18_xray_optical.jpg",
          "id":"172_optical",
          "layer":"optical"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/wasp18/wasp18_annotated.jpg",
          "id":"172_annotated",
          "layer":"annotated"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/puppisa/puppisa.jpg",
      "title":"Puppis A",
      "description":"A supernova remnant located about 7,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/puppisa",
      "id":"173",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/puppisa/puppisa_multi.jpg",
          "id":"173_multi",
          "layer":"multi"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/etacar/etacar.jpg",
      "title":"Eta Carinae",
      "description":"A double star system that contains one of the most massive stars in the Milky Way galaxy.",
      "url":"https://chandra.harvard.edu/photo/2014/etacar",
      "id":"174",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/etacar/etacar_3panel.jpg",
          "id":"174_3panel",
          "layer":"3panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/etacar/etacar_IR_wide.jpg",
          "id":"174_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/etacar/etacar_nearIR_wide.jpg",
          "id":"174_wide",
          "layer":"wide"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/etacar/etacar_optical_wide.jpg",
          "id":"174_wide",
          "layer":"wide"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/m82/m82.jpg",
      "title":"M82 SN2014J",
      "description":"A supernova in the galaxy M82 about 11.4 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/m82",
      "id":"175",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/m82/m82_nb.jpg",
          "id":"175_nb",
          "layer":"nb"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/m82/m82_pre.jpg",
          "id":"175_pre",
          "layer":"pre"
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        {
          "src":"https://chandra.harvard.edu/photo/2014/m82/m82_post.jpg",
          "id":"175_post",
          "layer":"post"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/15year/15year_3c58.jpg",
      "title":"3C58",
      "description":"The remnant of a supernova observed in the year 1181 AD",
      "url":"https://chandra.harvard.edu/photo/2014/15year",
      "id":"176",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/tycho.jpg",
          "id":"176_tycho",
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        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/g292.jpg",
          "id":"176_g292",
          "layer":"g292"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/crab.jpg",
          "id":"176_crab",
          "layer":"crab"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/3c58.jpg",
          "id":"176_3c58",
          "layer":"3c58"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/tycho_xray_optical.jpg",
          "id":"176_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/g292_xray_optical.jpg",
          "id":"176_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/crab_xray_optical.jpg",
          "id":"176_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/3c58_xray_optical.jpg",
          "id":"176_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/tycho_optical.jpg",
          "id":"176_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/g292_optical.jpg",
          "id":"176_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/crab_optical.jpg",
          "id":"176_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/3c58_optical.jpg",
          "id":"176_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/crab_B_2-7keV.jpg",
          "id":"176_2-7keV",
          "layer":"2-7keV"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/crab_G_1.2-2keV.jpg",
          "id":"176_1.2-2keV",
          "layer":"1.2-2keV"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/15year/crab_R_0.5-1.2keV.jpg",
          "id":"176_0.5-1.2keV",
          "layer":"0.5-1.2keV"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/m106/m106.jpg",
      "title":"NGC 4258 (M106)",
      "description":"Messier 106, is located about 23 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/m106",
      "id":"177",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/m106/m106_xray.jpg",
          "id":"177_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/m106/m106_ir.jpg",
          "id":"177_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/m106/m106_radio.jpg",
          "id":"177_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/m106/m106_optical.jpg",
          "id":"177_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/m106/m106_xray_h2.jpg",
          "id":"177_h2",
          "layer":"h2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/m106/m106_xray_h2_annotated.jpg",
          "id":"177_annotated",
          "layer":"annotated"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/m106/m106_h2_1.jpg",
          "id":"177_1",
          "layer":"1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/m106/m106_h2_2.jpg",
          "id":"177_2",
          "layer":"2"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/perseus/perseus.jpg",
      "title":"Perseus Cluster",
      "description":"A giant collection of galaxies immersed in hot gas about 250 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/perseus",
      "id":"178",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/perseus/perseus_xray.jpg",
          "id":"178_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/perseus/perseus_xmm.jpg",
          "id":"178_xmm",
          "layer":"xmm"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/perseus/sample_stamps.jpg",
          "id":"178_stamps",
          "layer":"stamps"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/m51/m51.jpg",
      "title":"Whirlpool Galaxy",
      "description":"A spiral galaxy located about 30 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/m51",
      "id":"179",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/m51/m51_xray.jpg",
          "id":"179_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/m51/m51_optical.jpg",
          "id":"179_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/m51/m51_xray_3color.jpg",
          "id":"179_3color",
          "layer":"3color"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/coldgas/n1399.jpg",
      "title":"NGC 1399",
      "description":"Four elliptical galaxies with very low levels of star formation.",
      "url":"https://chandra.harvard.edu/photo/2014/coldgas",
      "id":"180",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/coldgas/coldgas_4panel.jpg",
          "id":"180_4panel",
          "layer":"4panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/coldgas/n1399.jpg",
          "id":"180_n1399",
          "layer":"n1399"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/coldgas/n4472.jpg",
          "id":"180_n4472",
          "layer":"n4472"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/coldgas/n4636.jpg",
          "id":"180_n4636",
          "layer":"n4636"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/coldgas/n5044.jpg",
          "id":"180_n5044",
          "layer":"n5044"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/coldgas/n1399_optical.jpg",
          "id":"180_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/coldgas/n4472_optical.jpg",
          "id":"180_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/coldgas/n4636_optical.jpg",
          "id":"180_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/coldgas/n5044_optical.jpg",
          "id":"180_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/flame/flame.jpg",
      "title":"Flame Nebula",
      "description":"A star cluster in the center of the Flame Nebula about 1,400 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/flame",
      "id":"181",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/flame/flame_xray.jpg",
          "id":"181_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/flame/flame_ir.jpg",
          "id":"181_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/flame/flame_optical.jpg",
          "id":"181_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/flame/flame_optical_overlay.jpg",
          "id":"181_overlay",
          "layer":"overlay"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/flame/flame_pullout.jpg",
          "id":"181_pullout",
          "layer":"pullout"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/proam/m101.jpg",
      "title":"M101",
      "description":"Four images of galaxies that have been made using data from both amateur and professional telescopes.",
      "url":"https://chandra.harvard.edu/photo/2014/proam",
      "id":"182",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/cena.jpg",
          "id":"182_cena",
          "layer":"cena"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/cena_xray.jpg",
          "id":"182_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/cena_optical.jpg",
          "id":"182_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/cena_ir.jpg",
          "id":"182_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/m81.jpg",
          "id":"182_m81",
          "layer":"m81"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/m81_xray.jpg",
          "id":"182_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/m81_optical.jpg",
          "id":"182_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/m81_ir.jpg",
          "id":"182_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/m51.jpg",
          "id":"182_m51",
          "layer":"m51"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/m51_xray.jpg",
          "id":"182_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/m51_optical.jpg",
          "id":"182_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/m51_ir.jpg",
          "id":"182_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/m101.jpg",
          "id":"182_m101",
          "layer":"m101"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/m101_xray.jpg",
          "id":"182_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/m101_optical.jpg",
          "id":"182_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/proam/m101_ir.jpg",
          "id":"182_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/g352/g352.jpg",
      "title":"G352.7-0.1",
      "description":"A supernova remnant about 24,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/g352",
      "id":"183",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/g352/g352_xray.jpg",
          "id":"183_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/g352/g352_optical.jpg",
          "id":"183_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/g352/g352_radio.jpg",
          "id":"183_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/g352/g352_ir.jpg",
          "id":"183_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/elgordo/elgordo.jpg",
      "title":"El Gordo",
      "description":"A galaxy cluster nicknamed \"El Gordo\" about 7 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/elgordo",
      "id":"184",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/elgordo/elgordo_xray.jpg",
          "id":"184_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/elgordo/elgordo_optical.jpg",
          "id":"184_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/elgordo/elgordo_mass.jpg",
          "id":"184_mass",
          "layer":"mass"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/deml241/deml241.jpg",
      "title":"DEM L241",
      "description":"A supernova remnant in the Large Magellanic Cloud about 160,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/deml241",
      "id":"185",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/deml241/deml241_wide.jpg",
          "id":"185_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/deml241/deml241_xray.jpg",
          "id":"185_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/deml241/deml241_optical.jpg",
          "id":"185_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/rxj1131/rxj1131.jpg",
      "title":"RX J1131-1231",
      "description":"A quasar located about 6 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/rxj1131",
      "id":"186",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/rxj1131/rxj1131_xray.jpg",
          "id":"186_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/rxj1131/rxj1131_labelxray.jpg",
          "id":"186_labelxray",
          "layer":"labelxray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/rxj1131/rxj1131_optical.jpg",
          "id":"186_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/rxj1131/rxj1131_labelopt.jpg",
          "id":"186_labelopt",
          "layer":"labelopt"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/eso137/eso137.jpg",
      "title":"ESO 137-001",
      "description":"Galaxy ESO 137-001 plunges through the Norma galaxy cluster.",
      "url":"https://chandra.harvard.edu/photo/2014/eso137",
      "id":"187",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/eso137/eso137_xray.jpg",
          "id":"187_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/eso137/eso137_optical.jpg",
          "id":"187_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/eso137/eso137_xray_pk.jpg",
          "id":"187_pk",
          "layer":"pk"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/igrj11014/igrj11014.jpg",
      "title":"IGR J11014-6103",
      "description":"A pulsar moving at supersonic speeds about 23,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/igrj11014",
      "id":"188",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/igrj11014/igrj11014_xray.jpg",
          "id":"188_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/igrj11014/igrj11014_optical.jpg",
          "id":"188_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/igrj11014/igrj11014_radio.jpg",
          "id":"188_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/igrj11014/igrj11014_zoom.jpg",
          "id":"188_zoom",
          "layer":"zoom"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/cena/cena.jpg",
      "title":"Centaurus A",
      "description":"This galaxy contains a gargantuan jet blasting away from a central supermassive black hole.",
      "url":"https://chandra.harvard.edu/photo/2014/cena",
      "id":"189",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/cena/cena_red.jpg",
          "id":"189_red",
          "layer":"red"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/cena/cena_green.jpg",
          "id":"189_green",
          "layer":"green"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/cena/cena_blue.jpg",
          "id":"189_blue",
          "layer":"blue"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/rxj1532/rxj1532.jpg",
      "title":"RX J1532.9+3021",
      "description":"The black hole is in a galaxy cluster located about 3.9 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2014/rxj1532",
      "id":"190",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/rxj1532/rxj1532_xray.jpg",
          "id":"190_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/rxj1532/rxj1532_optical.jpg",
          "id":"190_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2014/a1795/a1795.jpg",
      "title":"Abell 1795",
      "description":"A bright, long duration flare may be the first recorded event of a black hole destroying a star in a dwarf galaxy.",
      "url":"https://chandra.harvard.edu/photo/2014/a1795",
      "id":"191",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2014/a1795/a1795_comp.jpg",
          "id":"191_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/a1795/a1795_xray.jpg",
          "id":"191_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/a1795/a1795_optical.jpg",
          "id":"191_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/a1795/a1795_xray_pre2005.jpg",
          "id":"191_pre2005",
          "layer":"pre2005"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/a1795/a1795_inset_pre2005.jpg",
          "id":"191_pre2005",
          "layer":"pre2005"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2014/a1795/a1795_inset_post2005.jpg",
          "id":"191_post2005",
          "layer":"post2005"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/amcvn/amcvn_j075141.jpg",
      "title":"J075141",
      "description":"The shortened names of a system that will evolve into a rare class of binary stars in the future.",
      "url":"https://chandra.harvard.edu/photo/2013/amcvn",
      "id":"192",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/amcvn/amcvn_j075141.jpg",
          "id":"192_j075141",
          "layer":"j075141"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/amcvn/amcvn_j075141_xray.jpg",
          "id":"192_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/amcvn/amcvn_j075141_optical.jpg",
          "id":"192_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/amcvn/amcvn_j174140.jpg",
          "id":"192_j174140",
          "layer":"j174140"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/amcvn/amcvn_j174140_xray.jpg",
          "id":"192_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/amcvn/amcvn_j174140_optical.jpg",
          "id":"192_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/amcvn/amcvn_ill1.jpg",
          "id":"192_ill1",
          "layer":"ill1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/amcvn/amcvn_ill2.jpg",
          "id":"192_ill2",
          "layer":"ill2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/amcvn/amcvn_ill3.jpg",
          "id":"192_ill3",
          "layer":"ill3"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/cirx1/cirx1.jpg",
      "title":"Circinus X-1",
      "description":"A neutron star and normal star binary pair about 26,000 light years away in the Milky Way galaxy.",
      "url":"https://chandra.harvard.edu/photo/2013/cirx1",
      "id":"193",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/cirx1/cirx1_wide.jpg",
          "id":"193_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/cirx1/cirx1_xray.jpg",
          "id":"193_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/cirx1/cirx1_optical.jpg",
          "id":"193_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/cirx1/cirx1_radio.jpg",
          "id":"193_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/cirx1/cirx1_freehand.jpg",
          "id":"193_freehand",
          "layer":"freehand"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/sgra/sgra.jpg",
      "title":"Sagittarius A*",
      "description":"The supermassive black hole at the center of the Milky Way",
      "url":"https://chandra.harvard.edu/photo/2013/sgra",
      "id":"194",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/sgra/sgra_xray.jpg",
          "id":"194_xray",
          "layer":"xray"
        },
        {
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      "src":"https://chandra.harvard.edu/photo/2013/casa/casa.jpg",
      "title":"Cassiopeia A",
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    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/sgra_echoes/sgra_echoes.jpg",
      "title":"Sagittarius A*",
      "description":"The supermassive black hole about 26,000 light years from Earth at the center of the Milky Way",
      "url":"https://chandra.harvard.edu/photo/2013/sgra_echoes",
      "id":"197",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/sgra_echoes/sgra_echoes_2003.jpg",
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        {
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          "layer":"2007"
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          "id":"197_2011",
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    {
      "src":"https://chandra.harvard.edu/photo/2013/igr/igr.jpg",
      "title":"IGR J18245-2452",
      "description":"These two images show a large change in X-ray brightness of a rapidly rotating neutron star, or pulsar, between 2006 and 2013.",
      "url":"https://chandra.harvard.edu/photo/2013/igr",
      "id":"198",
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          "id":"198_2006",
          "layer":"2006"
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    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/m60/m60.jpg",
      "title":"M60-UCD1",
      "description":"A galaxy about 54 million light years from Earth.",
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      "id":"199",
      "layers":[
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    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/coma/coma.jpg",
      "title":"Coma Cluster",
      "description":"A collection of thousands of galaxies about 320 million light years from Earth.",
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      "id":"200",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2013/coma/coma_xray_raw.jpg",
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      "src":"https://chandra.harvard.edu/photo/2013/sgra_gas/sgra_gas.jpg",
      "title":"Sagittarius A*",
      "description":"The supermassive black hole located 26,000 light years from Earth in the center of the Milky Way.",
      "url":"https://chandra.harvard.edu/photo/2013/sgra_gas",
      "id":"201",
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          "src":"https://chandra.harvard.edu/photo/2013/sgra_gas/sgra_gas_ill.jpg",
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          "src":"https://chandra.harvard.edu/photo/2013/sgra_gas/sgra_gas_wide.jpg",
          "id":"201_wide",
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          "src":"https://chandra.harvard.edu/photo/2013/sgra_gas/sgra_gas_wide_xray.jpg",
          "id":"201_xray",
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          "src":"https://chandra.harvard.edu/photo/2013/sgra_gas/sgra_gas_wide_ir1.jpg",
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          "src":"https://chandra.harvard.edu/photo/2013/sgra_gas/sgra_gas_zoom.jpg",
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          "layer":"zoom"
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    {
      "src":"https://chandra.harvard.edu/photo/2013/ngc1232/ngc1232.jpg",
      "title":"NGC 1232",
      "description":"A giant cloud of superheated gas that is likely caused by a collision between galaxies.",
      "url":"https://chandra.harvard.edu/photo/2013/ngc1232",
      "id":"202",
      "layers":[
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          "id":"202_xray",
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        {
          "src":"https://chandra.harvard.edu/photo/2013/ngc1232/ngc1232_optical.jpg",
          "id":"202_optical",
          "layer":"optical"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/hd189733/hd189733.jpg",
      "title":"HD 189733",
      "description":"An exoplanet in orbit around a star about 63 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2013/hd189733",
      "id":"203",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2013/hd189733/hd189733_xray.jpg",
          "id":"203_xray",
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          "src":"https://chandra.harvard.edu/photo/2013/hd189733/hd189733_ill.jpg",
          "id":"203_ill",
          "layer":"ill"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/ngc2392/ngc2392.jpg",
      "title":"NGC 2392",
      "description":"A Sun-like star in its end phase of life.",
      "url":"https://chandra.harvard.edu/photo/2013/ngc2392",
      "id":"204",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/ngc2392/ngc2392_xray.jpg",
          "id":"204_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/ngc2392/ngc2392_optical.jpg",
          "id":"204_optical",
          "layer":"optical"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/g19/g19.jpg",
      "title":"G1.9+0.3",
      "description":"A supernova remnant in the Milky Way located about 28,000 light years from Earth",
      "url":"https://chandra.harvard.edu/photo/2013/g19",
      "id":"205",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2013/g19/g19_xray.jpg",
          "id":"205_xray",
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          "src":"https://chandra.harvard.edu/photo/2013/g19/g19_optical.jpg",
          "id":"205_optical",
          "layer":"optical"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/m31/m31.jpg",
      "title":"M31",
      "description":"A spiral galaxy located 2.5 million light years from our own.",
      "url":"https://chandra.harvard.edu/photo/2013/m31",
      "id":"206",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/m31/m31_core.jpg",
          "id":"206_core",
          "layer":"core"
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          "src":"https://chandra.harvard.edu/photo/2013/m31/m31_core_xray.jpg",
          "id":"206_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/m31/m31_core_xray_markers.jpg",
          "id":"206_markers",
          "layer":"markers"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/m31/m31_core_optical.jpg",
          "id":"206_optical",
          "layer":"optical"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/m31/m31_wide_xray.jpg",
          "id":"206_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/m31/m31_wide_xray_markers.jpg",
          "id":"206_markers",
          "layer":"markers"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/m31/m31_wide.jpg",
          "id":"206_wide",
          "layer":"wide"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/m31/m31_wide_marker.jpg",
          "id":"206_marker",
          "layer":"marker"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/sgr0418/sgr0418.jpg",
      "title":"SGR 0418+5729",
      "description":"A magnetar located in our galaxy, about 6,500 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2013/sgr0418",
      "id":"207",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/sgr0418/sgr0418_composite.jpg",
          "id":"207_composite",
          "layer":"composite"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/sgr0418/sgr0418_xray.jpg",
          "id":"207_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/sgr0418/sgr0418_ir.jpg",
          "id":"207_ir",
          "layer":"ir"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/sgr0418/sgr0418_ir_wide.jpg",
          "id":"207_wide",
          "layer":"wide"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/sgr0418/sgr0418_magnetar1.jpg",
          "id":"207_magnetar1",
          "layer":"magnetar1"
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          "src":"https://chandra.harvard.edu/photo/2013/sgr0418/sgr0418_magnetar2.jpg",
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          "layer":"magnetar2"
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    {
      "src":"https://chandra.harvard.edu/photo/2013/4c2930/4c2930.jpg",
      "title":"4C+29.30",
      "description":"A galaxy located about 850 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2013/4c2930",
      "id":"208",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/4c2930/4c2930_xray.jpg",
          "id":"208_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/4c2930/4c2930_optical.jpg",
          "id":"208_optical",
          "layer":"optical"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/4c2930/4c2930_radio.jpg",
          "id":"208_radio",
          "layer":"radio"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/ngc6240/ngc6240.jpg",
      "title":"NGC 6240",
      "description":"A pair of colliding spiral galaxies about 330 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2013/ngc6240",
      "id":"209",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2013/ngc6240/ngc6240_xray.jpg",
          "id":"209_xray",
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          "src":"https://chandra.harvard.edu/photo/2013/ngc6240/ngc6240_optical.jpg",
          "id":"209_optical",
          "layer":"optical"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/sn1006/sn1006.jpg",
      "title":"SN 1006",
      "description":"A supernova remnant whose progenitor explosion was seen from Earth over a thousand years ago.",
      "url":"https://chandra.harvard.edu/photo/2013/sn1006",
      "id":"210",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2013/sn1006/sn1006_xray.jpg",
          "id":"210_xray",
          "layer":"xray"
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          "src":"https://chandra.harvard.edu/photo/2013/sn1006/sn1006_xray_optical.jpg",
          "id":"210_optical",
          "layer":"optical"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/ngc602/ngc602.jpg",
      "title":"NGC 602",
      "description":"Young stars in the Small Magellanic Cloud, one of the closest galaxies to our Milky Way.",
      "url":"https://chandra.harvard.edu/photo/2013/ngc602",
      "id":"211",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/ngc602/ngc602_xray.jpg",
          "id":"211_xray",
          "layer":"xray"
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          "src":"https://chandra.harvard.edu/photo/2013/ngc602/ngc602_optical.jpg",
          "id":"211_optical",
          "layer":"optical"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/ngc602/ngc602_ir.jpg",
          "id":"211_ir",
          "layer":"ir"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/kepler/kepler.jpg",
      "title":"Kepler's Supernova Remnant",
      "description":"A long Chandra observation gives clues about the origin of the Kepler SNR.",
      "url":"https://chandra.harvard.edu/photo/2013/kepler",
      "id":"212",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/kepler/kepler_elements.jpg",
          "id":"212_elements",
          "layer":"elements"
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          "src":"https://chandra.harvard.edu/photo/2013/kepler/kepler_xray.jpg",
          "id":"212_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/kepler/kepler_optical.jpg",
          "id":"212_optical",
          "layer":"optical"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/kepler/kepler_still1.jpg",
          "id":"212_still1",
          "layer":"still1"
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        {
          "src":"https://chandra.harvard.edu/photo/2013/kepler/kepler_still2.jpg",
          "id":"212_still2",
          "layer":"still2"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/g306/g306.jpg",
      "title":"G306.3-0.9",
      "description":"A newly discovered supernova remnant by Swift in the Milky Way is among the youngest known.",
      "url":"https://chandra.harvard.edu/photo/2013/g306",
      "id":"213",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2013/g306/g306_xray.jpg",
          "id":"213_xray",
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          "src":"https://chandra.harvard.edu/photo/2013/g306/g306_ir.jpg",
          "id":"213_ir",
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        {
          "src":"https://chandra.harvard.edu/photo/2013/g306/g306_radio.jpg",
          "id":"213_radio",
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        {
          "src":"https://chandra.harvard.edu/photo/2013/g306/g306_wide.jpg",
          "id":"213_wide",
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        {
          "src":"https://chandra.harvard.edu/photo/2013/g306/g306_wide_xray.jpg",
          "id":"213_xray",
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        {
          "src":"https://chandra.harvard.edu/photo/2013/g306/g306_wide_ir.jpg",
          "id":"213_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/g306/g306_wide_radio.jpg",
          "id":"213_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/g306/g306_swift.jpg",
          "id":"213_swift",
          "layer":"swift"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/47tuc/47tuc.jpg",
      "title":"47 Tucanae",
      "description":"A globular cluster located about 15,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2013/47tuc",
      "id":"214",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/47tuc/ngc6397.jpg",
          "id":"214_ngc6397",
          "layer":"ngc6397"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/47tuc/47tuc_optical.jpg",
          "id":"214_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/w49b/w49b.jpg",
      "title":"W49B",
      "description":"A highly distorted supernova remnant, produced by a rare type of explosion.",
      "url":"https://chandra.harvard.edu/photo/2013/w49b",
      "id":"215",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/w49b/w49b_xray.jpg",
          "id":"215_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/w49b/w49b_ir.jpg",
          "id":"215_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/w49b/w49b_radio.jpg",
          "id":"215_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/w49b/w49b_elements.jpg",
          "id":"215_elements",
          "layer":"elements"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/deml50/deml50.jpg",
      "title":"DEM L50",
      "description":"A superbubble located in the Large Magellanic Cloud about 160,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2013/deml50",
      "id":"216",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/deml50/deml50_xray.jpg",
          "id":"216_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/deml50/deml50_optical.jpg",
          "id":"216_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/deml50/deml50_wide.jpg",
          "id":"216_wide",
          "layer":"wide"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2013/vela/vela.jpg",
      "title":"Vela Pulsar Jet",
      "description":"A new Chandra movie of the Vela pulsar shows it may be ",
      "url":"https://chandra.harvard.edu/photo/2013/vela",
      "id":"217",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2013/vela/vela_wide.jpg",
          "id":"217_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/vela/vela_1.jpg",
          "id":"217_1",
          "layer":"1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/vela/vela_2.jpg",
          "id":"217_2",
          "layer":"2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/vela/vela_3.jpg",
          "id":"217_3",
          "layer":"3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/vela/vela_4.jpg",
          "id":"217_4",
          "layer":"4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/vela/vela_5.jpg",
          "id":"217_5",
          "layer":"5"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/vela/vela_6.jpg",
          "id":"217_6",
          "layer":"6"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/vela/vela_7.jpg",
          "id":"217_7",
          "layer":"7"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/vela/vela_8.jpg",
          "id":"217_8",
          "layer":"8"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/vela/vela_ill.jpg",
          "id":"217_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/vela/vela_optical.jpg",
          "id":"217_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/vela/vela_optical_xray_wide.jpg",
          "id":"217_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2013/vela/vela_optical_xray.jpg",
          "id":"217_xray",
          "layer":"xray"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/pks0745/pks0745.jpg",
      "title":"PKS 0745",
      "description":"A galaxy cluster about 1.3 billion light years from Earth with a large elliptical galaxy in its center.",
      "url":"https://chandra.harvard.edu/photo/2012/pks0745",
      "id":"218",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/pks0745/pks0745_xray_optical.jpg",
          "id":"218_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pks0745/pks0745_xray.jpg",
          "id":"218_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pks0745/pks0745_optical.jpg",
          "id":"218_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pks0745/pks0745_radio.jpg",
          "id":"218_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pks0745/a2204.jpg",
          "id":"218_a2204",
          "layer":"a2204"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pks0745/a2204_xray.jpg",
          "id":"218_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pks0745/a2204_optical.jpg",
          "id":"218_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/ngc3627/ngc3627.jpg",
      "title":"NGC 3627",
      "description":"This composite image shows the spiral galaxy NGC 3627, located about 30 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/ngc3627",
      "id":"219",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc3627/ngc3627_comp.jpg",
          "id":"219_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc3627/ngc3627_xray.jpg",
          "id":"219_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc3627/ngc3627_xray_marker.jpg",
          "id":"219_marker",
          "layer":"marker"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc3627/ngc3627_optical.jpg",
          "id":"219_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc3627/ngc3627_optical_3color.jpg",
          "id":"219_3color",
          "layer":"3color"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc3627/ngc3627_ir.jpg",
          "id":"219_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/ngc922/ngc922.jpg",
      "title":"NGC 922",
      "description":"A ring galaxy about 157 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/ngc922",
      "id":"220",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc922/ngc922_xray.jpg",
          "id":"220_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc922/ngc922_optical.jpg",
          "id":"220_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/gb1428/gb1428.jpg",
      "title":"GB 1428+4217",
      "description":"A quasar at a distance of about 12.4 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/gb1428",
      "id":"221",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/gb1428/gb1428_xray.jpg",
          "id":"221_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/gb1428/gb1428_optical.jpg",
          "id":"221_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/gb1428/gb1428_radio.jpg",
          "id":"221_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/gb1428/gb1428_label_comp.jpg",
          "id":"221_comp",
          "layer":"comp"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/a30/a30.jpg",
      "title":"Abell 30",
      "description":"The planetary nebula Abell 30, (a.k.a. A30), is located about 5500 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/a30",
      "id":"222",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/a30/a30_xray.jpg",
          "id":"222_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/a30/a30_opt.jpg",
          "id":"222_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/a30/a30_close.jpg",
          "id":"222_close",
          "layer":"close"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/a30/a30_xray_close.jpg",
          "id":"222_close",
          "layer":"close"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/a30/a30_optical_close.jpg",
          "id":"222_close",
          "layer":"close"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/a30/a30_wide.jpg",
          "id":"222_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/a30/a30_wide_xray.jpg",
          "id":"222_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/a30/a30_wide_optical.jpg",
          "id":"222_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/cygob2/cygob2.jpg",
      "title":"Cygnus OB2",
      "description":"A star cluster about 5,000 light years from Earth that contains many massive young stars.",
      "url":"https://chandra.harvard.edu/photo/2012/cygob2",
      "id":"223",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/cygob2/cygob2_xray.jpg",
          "id":"223_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/cygob2/cygob2_halpha.jpg",
          "id":"223_halpha",
          "layer":"halpha"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/cygob2/cygob2_ir.jpg",
          "id":"223_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/ngc4178/ngc4178.jpg",
      "title":"NGC 4178",
      "description":"A black hole located in the middle of the spiral galaxy NGC 4178",
      "url":"https://chandra.harvard.edu/photo/2012/ngc4178",
      "id":"224",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc4178/ngc4178_overlay.jpg",
          "id":"224_overlay",
          "layer":"overlay"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc4178/ngc4178_xray.jpg",
          "id":"224_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc4178/ngc4178_optical.jpg",
          "id":"224_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc4178/ngc4178_ir.jpg",
          "id":"224_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/pne/ngc6543.jpg",
      "title":"NGC 6543",
      "description":"A planetary nebula located less than 5000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/pne",
      "id":"225",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/pne_xray.jpg",
          "id":"225_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/pne_optical.jpg",
          "id":"225_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/ngc6543.jpg",
          "id":"225_ngc6543",
          "layer":"ngc6543"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/ngc6543_xray.jpg",
          "id":"225_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/ngc6543_optical.jpg",
          "id":"225_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/ngc7662.jpg",
          "id":"225_ngc7662",
          "layer":"ngc7662"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/ngc7662_xray.jpg",
          "id":"225_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/ngc7662_optical.jpg",
          "id":"225_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/ngc7009.jpg",
          "id":"225_ngc7009",
          "layer":"ngc7009"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/ngc7009_xray.jpg",
          "id":"225_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/ngc7009_optical.jpg",
          "id":"225_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/ngc6826.jpg",
          "id":"225_ngc6826",
          "layer":"ngc6826"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/ngc6826_xray.jpg",
          "id":"225_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/pne/ngc6826_optical.jpg",
          "id":"225_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/halo/halo.jpg",
      "title":"Galactic Halo",
      "description":"An enormous halo of hot gas (in blue) around the Milky Way galaxy with a radius of at least 300,000 light years.",
      "url":"https://chandra.harvard.edu/photo/2012/halo",
      "id":"226",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/kepler/kepler.jpg",
      "title":"Kepler's Supernova Remnant",
      "description":"The debris from a supernova observed in 1604.",
      "url":"https://chandra.harvard.edu/photo/2012/kepler",
      "id":"227",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/kepler/kepler_xray.jpg",
          "id":"227_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/kepler/kepler_optical.jpg",
          "id":"227_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/n1929/n1929.jpg",
      "title":"NGC 1929",
      "description":"A star cluster embedded within the N44 nebula, which is located about 160,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/n1929",
      "id":"228",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/n1929/n1929_xray.jpg",
          "id":"228_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/n1929/n1929_optical.jpg",
          "id":"228_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/n1929/n1929_ir.jpg",
          "id":"228_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/phoenix/phoenix.jpg",
      "title":"Phoenix Cluster",
      "description":"A galaxy cluster, whose official name is SPT-CLJ2344-4243, located about 5.7 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/phoenix",
      "id":"229",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/phoenix/phoenix_ill.jpg",
          "id":"229_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/phoenix/phoenix_more.jpg",
          "id":"229_more",
          "layer":"more"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/phoenix/phoenix_optical_uv.jpg ",
          "id":"229_uv ",
          "layer":"uv "
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/phoenix/phoenix_xray.jpg",
          "id":"229_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/phoenix/phoenix_uv.jpg",
          "id":"229_uv",
          "layer":"uv"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/phoenix/phoenix_pullout.jpg",
          "id":"229_pullout",
          "layer":"pullout"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/phoenix/phoenix_sz.jpg",
          "id":"229_sz",
          "layer":"sz"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/phoenix/h-654-2panelA.jpg",
          "id":"229_h-654-2panelA",
          "layer":"h-654-2panelA"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/phoenix/perseus_xray.jpg",
          "id":"229_xray",
          "layer":"xray"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/m83sn/m83sn.jpg",
      "title":"M83",
      "description":"A young supernova remnant in the spiral galaxy M83, which is located about 15 million light years from Earth. ",
      "url":"https://chandra.harvard.edu/photo/2012/m83sn",
      "id":"230",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/m83sn/m83sn_xray_full.jpg",
          "id":"230_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/m83sn/m83sn_eso.jpg",
          "id":"230_eso",
          "layer":"eso"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/m83sn/m83sn_bboptical_wide.jpg",
          "id":"230_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/m83sn/m83sn_bboptical_zoom.jpg",
          "id":"230_zoom",
          "layer":"zoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/m83sn/m83sn_nboptical_wide.jpg",
          "id":"230_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/m83sn/m83sn_nboptical_zoom.jpg",
          "id":"230_zoom",
          "layer":"zoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/m83sn/m83sn_multipanel_zoom.jpg",
          "id":"230_zoom",
          "layer":"zoom"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/v1647/v1647.jpg",
      "title":"V1647 Ori",
      "description":"Astronomers have obtained a rare glimpse of the powerful phenomena that accompany a still-forming star.",
      "url":"https://chandra.harvard.edu/photo/2012/v1647",
      "id":"231",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/igrj11014/igrj11014.jpg",
      "title":"IGR J11014-6103",
      "description":"A pulsar found racing away from a supernova remnant about 30,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/igrj11014",
      "id":"232",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/igrj11014/igrj11014_wide.jpg",
          "id":"232_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/igrj11014/igrj11014_comp.jpg",
          "id":"232_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/igrj11014/igrj11014_xray.jpg",
          "id":"232_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/igrj11014/igrj11014_optical.jpg",
          "id":"232_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/ngc4342/n4342.jpg",
      "title":"NGC 4342",
      "description":"New evidence from Chandra challenges prevailing ideas about how supermassive black holes grow in the centers of galaxies.",
      "url":"https://chandra.harvard.edu/photo/2012/ngc4342",
      "id":"233",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc4342/n4342.jpg",
          "id":"233_n4342",
          "layer":"n4342"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc4342/n4342_xray.jpg",
          "id":"233_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc4342/n4342_ir.jpg",
          "id":"233_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc4342/n4291.jpg",
          "id":"233_n4291",
          "layer":"n4291"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc4342/n4291_xray.jpg",
          "id":"233_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/ngc4342/n4291_ir.jpg",
          "id":"233_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/cid42/cid42.jpg",
      "title":"CID-42",
      "description":"The galaxy at the center of this image contains an X-ray source, CID-42, with exceptional properties.",
      "url":"https://chandra.harvard.edu/photo/2012/cid42",
      "id":"234",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/cid42/cid42_wide.jpg",
          "id":"234_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/cid42/cid42_xray_optical.jpg",
          "id":"234_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/cid42/cid42_xray.jpg",
          "id":"234_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/cid42/cid42_optical.jpg",
          "id":"234_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/m101/m101.jpg",
      "title":"M101",
      "description":"A spiral galaxy located about 21 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/m101",
      "id":"235",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/m101/m101_xray.jpg",
          "id":"235_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/m101/m101_optical.jpg",
          "id":"235_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/m101/m101_ir.jpg",
          "id":"235_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/m101/m101_uv.jpg",
          "id":"235_uv",
          "layer":"uv"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/sn2010/sn2010.jpg",
      "title":"SN 2010jl",
      "description":"A supernova found in the galaxy UGC 5189A about 160 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/sn2010",
      "id":"236",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/sn2010/sn2010_xray.jpg",
          "id":"236_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/sn2010/sn2010_optical.jpg",
          "id":"236_optical",
          "layer":"optical"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/hgs/hgs.jpg",
      "title":"Herschel Galaxy Survey",
      "description":"Galaxies produce fewer stars than galaxies with less active black holes.",
      "url":"https://chandra.harvard.edu/photo/2012/hgs",
      "id":"237",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/ps1/ps1.jpg",
      "title":"PS1-10jh",
      "description":"A galaxy about 2.7 billion light years from Earth with a supermassive black hole at its center.",
      "url":"https://chandra.harvard.edu/photo/2012/ps1",
      "id":"238",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/m83/m83.jpg",
      "title":"M83",
      "description":"A spiral galaxy located about 15 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/m83",
      "id":"239",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/m83/m83_full.jpg",
          "id":"239_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/m83/m83_xray_optical.jpg",
          "id":"239_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/m83/m83_xray.jpg",
          "id":"239_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/m83/m83_optical.jpg",
          "id":"239_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/m83/m83_4panel.jpg",
          "id":"239_4panel",
          "layer":"4panel"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/30dor/30dor.jpg",
      "title":"Tarantula Nebula",
      "description":"A massive star-forming region located about 160,000 light years away.",
      "url":"https://chandra.harvard.edu/photo/2012/30dor",
      "id":"240",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/30dor/30dor_xray.jpg",
          "id":"240_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/30dor/30dor_optical.jpg",
          "id":"240_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/30dor/30dor_ir.jpg",
          "id":"240_ir",
          "layer":"ir"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/musketball/musketball.jpg",
      "title":"DLSCL J0916.2+2951",
      "description":"A merger of galaxy clusters about 5.2 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/musketball",
      "id":"241",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/musketball/musketball_xray.jpg",
          "id":"241_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/musketball/musketball_optical.jpg",
          "id":"241_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/musketball/musketball_mass.jpg",
          "id":"241_mass",
          "layer":"mass"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/casa/casa.jpg",
      "title":"Cassiopeia A",
      "description":"A new study of a SNR indicates that the original massive star may have turned inside out in the explosion.",
      "url":"https://chandra.harvard.edu/photo/2012/casa",
      "id":"242",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/casa/casa_nolabel.jpg",
          "id":"242_nolabel",
          "layer":"nolabel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/casa/casa_xray.jpg",
          "id":"242_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/casa/casa_fe.jpg",
          "id":"242_fe",
          "layer":"fe"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/casa/casa_s.jpg",
          "id":"242_s",
          "layer":"s"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/casa/casa_mg.jpg",
          "id":"242_mg",
          "layer":"mg"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/a383/a383.jpg",
      "title":"Abell 383",
      "description":"A cluster of galaxies located about 2.3 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/a383",
      "id":"243",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/a383/a383_xray.jpg",
          "id":"243_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/a383/a383_optical.jpg",
          "id":"243_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/a383/a383_wide.jpg",
          "id":"243_wide",
          "layer":"wide"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/a520/a520.jpg",
      "title":"Abell 520",
      "description":"A collision of massive galaxy clusters located about 2.4 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/a520",
      "id":"244",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/a520/a520_xray.jpg",
          "id":"244_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/a520/a520_optical.jpg",
          "id":"244_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/a520/a520_mass.jpg",
          "id":"244_mass",
          "layer":"mass"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/a520/a520_lum.jpg",
          "id":"244_lum",
          "layer":"lum"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/a520/a520_scale.jpg",
          "id":"244_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/igr/igr.jpg",
      "title":"IGR J17091-3624",
      "description":"A binary system containing a stellar-mass black hole.",
      "url":"https://chandra.harvard.edu/photo/2012/igr",
      "id":"245",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/sgra/sgra.jpg",
      "title":"Sagittarius A*",
      "description":"Illustration of the supermassive black hole at the center of the Milky Way galaxy.",
      "url":"https://chandra.harvard.edu/photo/2012/sgra",
      "id":"246",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/sgra/sgra_1r.jpg",
          "id":"246_1r",
          "layer":"1r"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/sgra/sgra_2r.jpg",
          "id":"246_2r",
          "layer":"2r"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/sgra/sgra_3r.jpg",
          "id":"246_3r",
          "layer":"3r"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/sgra/sgra_unlabeled.jpg",
          "id":"246_unlabeled",
          "layer":"unlabeled"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/g350/g350.jpg",
      "title":"G350.1-0.3",
      "description":"A supernova remnant located about 14,700 light years from Earth toward the center of the Milky Way",
      "url":"https://chandra.harvard.edu/photo/2012/g350",
      "id":"247",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/g350/g350_xray.jpg",
          "id":"247_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/g350/g350_ir.jpg",
          "id":"247_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/g350/g350_scale.jpg",
          "id":"247_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2012/elgordo/elgordo.jpg",
      "title":"El Gordo",
      "description":"A galaxy cluster located about 7 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2012/elgordo",
      "id":"248",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2012/elgordo/elgordo_xray.jpg",
          "id":"248_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/elgordo/elgordo_oir.jpg",
          "id":"248_oir",
          "layer":"oir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/elgordo/elgordo_density.jpg",
          "id":"248_density",
          "layer":"density"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/elgordo/elgordo_dmap.jpg",
          "id":"248_dmap",
          "layer":"dmap"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2012/elgordo/elgordo_scale.jpg",
          "id":"248_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/sxp1062/sxp1062.jpg",
      "title":"SXP 1062",
      "description":"A pulsar found within a supernova remnant in the Small Magellanic Cloud (SMC)",
      "url":"https://chandra.harvard.edu/photo/2011/sxp1062",
      "id":"249",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/sxp1062/sxp1062_xray.jpg",
          "id":"249_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/sxp1062/sxp1062_optical.jpg",
          "id":"249_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/sxp1062/sxp1062_scale.jpg",
          "id":"249_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/a2052/a2052.jpg",
      "title":"Abell 2052",
      "description":"A cluster of galaxies located about 480 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/a2052",
      "id":"250",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/a2052/a2052_xray.jpg",
          "id":"250_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/a2052/a2052_optical.jpg",
          "id":"250_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/a2052/a2052_composite.jpg",
          "id":"250_composite",
          "layer":"composite"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/a2052/a2052_radio.jpg",
          "id":"250_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/a2052/a2052_xray_3color.jpg",
          "id":"250_3color",
          "layer":"3color"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/a2052/a2052_xrayBB.jpg",
          "id":"250_xrayBB",
          "layer":"xrayBB"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/a2052/a2052_scale.jpg",
          "id":"250_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/cygx1/cygx1.jpg",
      "title":"Cygnus X-1",
      "description":"A stellar-mass black hole in orbit with a companion star located about 6,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/cygx1",
      "id":"251",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/cygx1/cygx1_ill.jpg",
          "id":"251_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cygx1/cygx1_xray.jpg",
          "id":"251_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cygx1/cygx1_optical.jpg",
          "id":"251_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cygx1/cygx1_scale.jpg",
          "id":"251_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/30dor/30dor.jpg",
      "title":"Tarantula Nebula",
      "description":"A large region of star formation about 160,000 light years away in the Large Magellanic Cloud.",
      "url":"https://chandra.harvard.edu/photo/2011/30dor",
      "id":"252",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/30dor/30dor_xray.jpg",
          "id":"252_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/30dor/30dor_ir.jpg",
          "id":"252_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/30dor/30dor_scale.jpg",
          "id":"252_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/rcw86/rcw86.jpg",
      "title":"RCW 86",
      "description":"A supernova remnant about 8,000 light years away.",
      "url":"https://chandra.harvard.edu/photo/2011/rcw86",
      "id":"253",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/rcw86/rcw86_xray.jpg",
          "id":"253_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/rcw86/rcw86_ir.jpg",
          "id":"253_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/rcw86/rcw86_scale.jpg",
          "id":"253_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/cid/cid1711.jpg",
      "title":"CID 1711",
      "description":"Two pairs of galaxies in a large survey that covers a large patch on the sky.",
      "url":"https://chandra.harvard.edu/photo/2011/cid",
      "id":"254",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/cid/cid1711.jpg",
          "id":"254_cid1711",
          "layer":"cid1711"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cid/cid1711_xray.jpg",
          "id":"254_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cid/cid1711_optical.jpg",
          "id":"254_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cid/cid3083.jpg",
          "id":"254_cid3083",
          "layer":"cid3083"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cid/cid3083_xray.jpg",
          "id":"254_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cid/cid3083_optical.jpg",
          "id":"254_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cid/cid1711_scale.jpg",
          "id":"254_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cid/cid3083_scale.jpg",
          "id":"254_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/g299/g299.jpg",
      "title":"G299.2-2.9",
      "description":"A supernova remnant located about 16,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/g299",
      "id":"255",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/g299/g299_xray.jpg",
          "id":"255_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/g299/g299_2mass.jpg",
          "id":"255_2mass",
          "layer":"2mass"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/g299/g299_scale.jpg",
          "id":"255_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/ngc281/ngc281.jpg",
      "title":"NGC 281",
      "description":"A nebula with active star formation about 9,200 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/ngc281",
      "id":"256",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/ngc281/ngc281_xray.jpg",
          "id":"256_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/ngc281/ngc281_ir.jpg",
          "id":"256_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/ngc281/ngc281_compare.jpg",
          "id":"256_compare",
          "layer":"compare"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/ngc281/ngc281_old.jpg",
          "id":"256_old",
          "layer":"old"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/ngc281/ngc281_scale.jpg",
          "id":"256_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/corot/corot.jpg",
      "title":"CoRoT-2a",
      "description":"A star with a planet in very close orbit around it, about 880 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/corot",
      "id":"257",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/corot/corot_xray.jpg",
          "id":"257_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/corot/corot_optical.jpg",
          "id":"257_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/corot/corot_ill.jpg",
          "id":"257_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/corot/corot_scale.jpg",
          "id":"257_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/n3393/n3393.jpg",
      "title":"NGC 3393",
      "description":"A spiral galaxy with two supermassive black holes.",
      "url":"https://chandra.harvard.edu/photo/2011/n3393",
      "id":"258",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/n3393/n3393_comp.jpg",
          "id":"258_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n3393/n3393_xray.jpg",
          "id":"258_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n3393/n3393_optical.jpg",
          "id":"258_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n3393/n3393_center.jpg",
          "id":"258_center",
          "layer":"center"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n3393/n3393_scale.jpg",
          "id":"258_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/vv340/vv340.jpg",
      "title":"VV 340",
      "description":"A pair of galaxies located about 450 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/vv340",
      "id":"259",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/vv340/vv340_xray.jpg",
          "id":"259_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/vv340/vv340_optical.jpg",
          "id":"259_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/vv340/vv340_spitzer_galex.jpg",
          "id":"259_galex",
          "layer":"galex"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/vv340/vv340_scale.jpg",
          "id":"259_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/n3115/n3115.jpg",
      "title":"NGC 3115",
      "description":"lenticular galaxy located about 32 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/n3115",
      "id":"260",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/n3115/n3115_comp.jpg",
          "id":"260_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n3115/n3115_xray.jpg",
          "id":"260_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n3115/n3115_optical.jpg",
          "id":"260_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n3115/n3115_zoom.jpg",
          "id":"260_zoom",
          "layer":"zoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n3115/n3115_scale.jpg",
          "id":"260_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/psrj0357/psrj0357.jpg",
      "title":"PSR J0357+3205",
      "description":"A pulsar located about 1,600 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/psrj0357",
      "id":"261",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/psrj0357/psrj0357_xray.jpg",
          "id":"261_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/psrj0357/psrj0357_optical.jpg",
          "id":"261_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/psrj0357/psrj0357_scale.jpg",
          "id":"261_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/a2744/a2744.jpg",
      "title":"Abell 2744",
      "description":"A collision of galaxy clusters about 3.5 billion light years away.",
      "url":"https://chandra.harvard.edu/photo/2011/a2744",
      "id":"262",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/a2744/a2744_xray.jpg",
          "id":"262_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/a2744/a2744_lensmap.jpg",
          "id":"262_lensmap",
          "layer":"lensmap"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/a2744/a2744_optical.jpg",
          "id":"262_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/a2744/a2744_scale.jpg",
          "id":"262_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs.jpg",
      "title":"Chandra Deep Field South ",
      "description":"A composite image combines the deepest X-ray image with optical and infrared data.",
      "url":"https://chandra.harvard.edu/photo/2011/cdfs",
      "id":"263",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_chandra.jpg",
          "id":"263_chandra",
          "layer":"chandra"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_chandraB.jpg",
          "id":"263_chandraB",
          "layer":"chandraB"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_hst_cxo.jpg",
          "id":"263_cxo",
          "layer":"cxo"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_circles.jpg",
          "id":"263_circles",
          "layer":"circles"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_optical.jpg",
          "id":"263_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_xray.jpg",
          "id":"263_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_xray_high.jpg",
          "id":"263_high",
          "layer":"high"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_xray_low.jpg",
          "id":"263_low",
          "layer":"low"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_ill_early.jpg",
          "id":"263_early",
          "layer":"early"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_pulloutsD1.jpg",
          "id":"263_pulloutsD1",
          "layer":"pulloutsD1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_ill_h.jpg",
          "id":"263_h",
          "layer":"h"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_ill_hnocut.jpg",
          "id":"263_hnocut",
          "layer":"hnocut"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_pulloutsD2.jpg",
          "id":"263_pulloutsD2",
          "layer":"pulloutsD2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_black_hole.jpg",
          "id":"263_hole",
          "layer":"hole"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_ill_ion.jpg",
          "id":"263_ion",
          "layer":"ion"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/cdfs/cdfs_ill_ionlabel.jpg",
          "id":"263_ionlabel",
          "layer":"ionlabel"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/carina/carina.jpg",
      "title":"Carina Nebula",
      "description":"A star-forming region about 7,500 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/carina",
      "id":"264",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/carina/carina_full.jpg",
          "id":"264_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/carina/carina_optical.jpg",
          "id":"264_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/carina/carina_opt.jpg",
          "id":"264_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/carina/carina_sp_hub.jpg",
          "id":"264_hub",
          "layer":"hub"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/carina/carina_full_scale.jpg",
          "id":"264_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/carina/carina_scale.jpg",
          "id":"264_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/crab/crab.jpg",
      "title":"Crab Nebula",
      "description":"A supernova explosion in the Milky Way observed on Earth in the year 1054.",
      "url":"https://chandra.harvard.edu/photo/2011/crab",
      "id":"265",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_montage.jpg",
          "id":"265_montage",
          "layer":"montage"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_13139.jpg",
          "id":"265_13139",
          "layer":"13139"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_13146.jpg",
          "id":"265_13146",
          "layer":"13146"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_13147.jpg",
          "id":"265_13147",
          "layer":"13147"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_13150.jpg",
          "id":"265_13150",
          "layer":"13150"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_13151.jpg",
          "id":"265_13151",
          "layer":"13151"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_13152.jpg",
          "id":"265_13152",
          "layer":"13152"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_13153.jpg",
          "id":"265_13153",
          "layer":"13153"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_13154.jpg",
          "id":"265_13154",
          "layer":"13154"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_13204.jpg",
          "id":"265_13204",
          "layer":"13204"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_13205.jpg",
          "id":"265_13205",
          "layer":"13205"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_13206.jpg",
          "id":"265_13206",
          "layer":"13206"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_13207.jpg",
          "id":"265_13207",
          "layer":"13207"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/crab/crab_flare.jpg",
          "id":"265_flare",
          "layer":"flare"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/tycho2/tycho2.jpg",
      "title":"Tycho's Supernova Remnant",
      "description":"A SNR named after the Danish astronomer who observed it in 1572.",
      "url":"https://chandra.harvard.edu/photo/2011/tycho2",
      "id":"266",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho2/tycho2_ill.jpg",
          "id":"266_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho2/tycho2_shadow.jpg",
          "id":"266_shadow",
          "layer":"shadow"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho2/tycho2_hi.jpg",
          "id":"266_hi",
          "layer":"hi"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho2/tycho2_med.jpg",
          "id":"266_med",
          "layer":"med"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho2/tycho2_low.jpg",
          "id":"266_low",
          "layer":"low"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho2/tycho2_scale.jpg",
          "id":"266_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/massive/j144547.jpg",
      "title":"J144547-5931",
      "description":"Two massive stars in the Milky Way,  \nboth about 9,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/massive",
      "id":"267",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/massive/j144547_xray.jpg",
          "id":"267_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/massive/j144547_ir.jpg",
          "id":"267_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/massive/j144547.jpg",
          "id":"267_j144547",
          "layer":"j144547"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/massive/j144701_xray.jpg",
          "id":"267_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/massive/j144701_ir.jpg",
          "id":"267_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/massive/j144701.jpg",
          "id":"267_j144701",
          "layer":"j144701"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/massive/massive_full.jpg",
          "id":"267_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/massive/massive_scale.jpg",
          "id":"267_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/grb110328/grb110328.jpg",
      "title":"GRB 110328A",
      "description":"A gamma-ray burst located about 3.8 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/grb110328",
      "id":"268",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/grb110328/grb110328_opt.jpg",
          "id":"268_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/grb110328/grb110328_plus.jpg",
          "id":"268_plus",
          "layer":"plus"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/tycho/tycho.jpg",
      "title":"Tycho's Supernova Remnant",
      "description":"A supernova remnant in the Milky Way about 13,000 light years  \nfrom Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/tycho",
      "id":"269",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho/tycho_xray.jpg",
          "id":"269_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho/tycho_optical.jpg",
          "id":"269_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho/tycho_nomask.jpg",
          "id":"269_nomask",
          "layer":"nomask"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho/tycho_pullout.jpg",
          "id":"269_pullout",
          "layer":"pullout"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho/tycho_stripes.jpg",
          "id":"269_stripes",
          "layer":"stripes"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho/tycho_hi.jpg",
          "id":"269_hi",
          "layer":"hi"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho/tycho_nolabeled.jpg",
          "id":"269_nolabeled",
          "layer":"nolabeled"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho/tycho_ill.jpg",
          "id":"269_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/tycho/tycho_scale.jpg",
          "id":"269_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/n4151/n4151.jpg",
      "title":"NGC 4151",
      "description":"A galaxy with an actively growing black hole at its center.",
      "url":"https://chandra.harvard.edu/photo/2011/n4151",
      "id":"270",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/n4151/n4151_pullout.jpg",
          "id":"270_pullout",
          "layer":"pullout"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n4151/n4151_central.jpg",
          "id":"270_central",
          "layer":"central"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n4151/n4151_central_xray.jpg",
          "id":"270_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n4151/n4151_central_optical.jpg",
          "id":"270_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n4151/n4151_central_radio.jpg",
          "id":"270_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n4151/n4151_xray.jpg",
          "id":"270_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n4151/n4151_ha.jpg",
          "id":"270_ha",
          "layer":"ha"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n4151/n4151_h1.jpg",
          "id":"270_h1",
          "layer":"h1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n4151/n4151_central_scale.jpg",
          "id":"270_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/n4151/n4151_scale.jpg",
          "id":"270_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/casa/casa.jpg",
      "title":"Cassiopeia A",
      "description":"A supernova remnant about 11,000 light years away.",
      "url":"https://chandra.harvard.edu/photo/2011/casa",
      "id":"271",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/casa/casa_illD.jpg",
          "id":"271_illD",
          "layer":"illD"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/casa/casa_sf_xray.jpg",
          "id":"271_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/casa/casa_sf_optical.jpg",
          "id":"271_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/casa/casa_sf.jpg",
          "id":"271_sf",
          "layer":"sf"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/casa/casa_3panel.jpg",
          "id":"271_3panel",
          "layer":"3panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/casa/casa_superfluidA.jpg",
          "id":"271_superfluidA",
          "layer":"superfluidA"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/casa/casa_superfluidB.jpg",
          "id":"271_superfluidB",
          "layer":"superfluidB"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/casa/casa_superfluidC.jpg",
          "id":"271_superfluidC",
          "layer":"superfluidC"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/casa/casa_sf_scale.jpg",
          "id":"271_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/arp147/arp147.jpg",
      "title":"Arp 147",
      "description":"A galaxy about 430 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/arp147",
      "id":"272",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/arp147/arp147_xray_optical.jpg",
          "id":"272_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/arp147/arp147_xray.jpg",
          "id":"272_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/arp147/arp147_optical.jpg",
          "id":"272_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/arp147/arp147_uv.jpg",
          "id":"272_uv",
          "layer":"uv"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/arp147/arp147_ir.jpg",
          "id":"272_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/arp147/arp147_multi.jpg",
          "id":"272_multi",
          "layer":"multi"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/arp147/arp147_scale.jpg",
          "id":"272_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/m82/m82.jpg",
      "title":"M82",
      "description":"A starburst galaxy located about 12 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/m82",
      "id":"273",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/m82/m82_scale.jpg",
          "id":"273_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/g1915/g1915.jpg",
      "title":"GRS 1915+105",
      "description":"A system containing a black hole about 14 times the Sun's mass in orbit with a companion star.",
      "url":"https://chandra.harvard.edu/photo/2011/g1915",
      "id":"274",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/g1915//photo/2009/g1915/g1915_xray.jpg",
          "id":"274_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/g1915//photo/2009/g1915/g1915_zoom6.jpg",
          "id":"274_zoom6",
          "layer":"zoom6"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/g1915/g1915_xray_optical_ir.jpg",
          "id":"274_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/g1915/g1915_lcurve.jpg",
          "id":"274_lcurve",
          "layer":"lcurve"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/g1915/g1915_4pan.jpg",
          "id":"274_4pan",
          "layer":"4pan"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/g1915/g1915_4panA.jpg",
          "id":"274_4panA",
          "layer":"4panA"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/g1915/g1915_4panB.jpg",
          "id":"274_4panB",
          "layer":"4panB"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/g1915/g1915_4panC.jpg",
          "id":"274_4panC",
          "layer":"4panC"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/g1915/g1915_4panD.jpg",
          "id":"274_4panD",
          "layer":"4panD"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/g1915/g1915_2pan.jpg",
          "id":"274_2pan",
          "layer":"2pan"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/g1915/g1915_2panA.jpg",
          "id":"274_2panA",
          "layer":"2panA"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/g1915/g1915_2panB.jpg",
          "id":"274_2panB",
          "layer":"2panB"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2011/he210/he210.jpg",
      "title":"Henize 2-10",
      "description":"A dwarf starburst galaxy about 30 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2011/he210",
      "id":"275",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2011/he210/he210_xray.jpg",
          "id":"275_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/he210/he210_optical.jpg",
          "id":"275_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/he210/he210_radio.jpg",
          "id":"275_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2011/he210/he210_scale.jpg",
          "id":"275_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/2gal/a644.jpg",
      "title":"Abell 644",
      "description":"A galaxy 920 million light years away from Earth.",
      "url":"https://chandra.harvard.edu/photo/2010/2gal",
      "id":"276",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/2gal/a644_xray.jpg",
          "id":"276_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/2gal/a644_optical.jpg",
          "id":"276_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/2gal/sdss1021_xray.jpg",
          "id":"276_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/2gal/sdss1021_optical.jpg",
          "id":"276_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/2gal/sdss1021_scale.jpg",
          "id":"276_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/2gal/2gal_scale.jpg",
          "id":"276_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/snr0509/snr0509.jpg",
      "title":"SNR 0509-67.5",
      "description":"A supernova in the Large Magellanic Cloud,   which lies about 160,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2010/snr0509",
      "id":"277",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/snr0509/snr0509_xray.jpg",
          "id":"277_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/snr0509/snr0509_optical.jpg",
          "id":"277_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/snr0509/snr0509_scale.jpg",
          "id":"277_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/ngc5813/ngc5813.jpg",
      "title":"NGC 5813",
      "description":"The central elliptical galaxy in a group located about 105   million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2010/ngc5813",
      "id":"278",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc5813/ngc5813_xray.jpg",
          "id":"278_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc5813/ngc5813_optical.jpg",
          "id":"278_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc5813/ngc5813_tmap.jpg",
          "id":"278_tmap",
          "layer":"tmap"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc5813/ngc5813_xray_3color.jpg",
          "id":"278_3color",
          "layer":"3color"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc5813/ngc5813_wide.jpg",
          "id":"278_wide",
          "layer":"wide"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/sn1979c/sn1979c.jpg",
      "title":"SN 1979C",
      "description":"A supernova that was seen to explode in 1979 from Earth, found in the galaxy M100. ",
      "url":"https://chandra.harvard.edu/photo/2010/sn1979c",
      "id":"279",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/sn1979c/sn1979c_nsu_2panA.jpg",
          "id":"279_2panA",
          "layer":"2panA"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/sn1979c/sn1979c_nsu_illG.jpg",
          "id":"279_illG",
          "layer":"illG"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/sn1979c/sn1979c_nsu_ill2B.jpg",
          "id":"279_ill2B",
          "layer":"ill2B"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/sn1979c/sn1979c_xray.jpg",
          "id":"279_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/sn1979c/sn1979c_optical.jpg",
          "id":"279_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/sn1979c/sn1979c_ir.jpg",
          "id":"279_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/sn1979c/sn1979c_wide_field_zoom.jpg",
          "id":"279_zoom",
          "layer":"zoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/sn1979c/sn1979c_scale.jpg",
          "id":"279_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/3c186/3c186.jpg",
      "title":"3C186",
      "description":"A galaxy cluster with a central quasar located about 8 billion light years away.",
      "url":"https://chandra.harvard.edu/photo/2010/3c186",
      "id":"280",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/3c186/3c186_xray.jpg",
          "id":"280_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/3c186/3c186_optical.jpg",
          "id":"280_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/3c186/3c186_scale.jpg",
          "id":"280_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/sgr0418/sgr0418.jpg",
      "title":"SGR 0418+5729",
      "description":"A slowly rotating neutron star with a very weak magnetic field at its surface. ",
      "url":"https://chandra.harvard.edu/photo/2010/sgr0418",
      "id":"281",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/g327/g327.jpg",
      "title":"G327.1-1.1",
      "description":"A supernova remnant in the Milky Way galaxy.",
      "url":"https://chandra.harvard.edu/photo/2010/g327",
      "id":"282",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/g327/g327_xray.jpg",
          "id":"282_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/g327/g327_radio.jpg",
          "id":"282_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/g327/g327_ir.jpg",
          "id":"282_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/g327/g327_scale.jpg",
          "id":"282_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/bppsc/bppsc.jpg",
      "title":"BP Psc",
      "description":"A Sun-like star in its \"red giant\" phase about 1,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2010/bppsc",
      "id":"283",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/bppsc/bppsc_bpill_1b.jpg",
          "id":"283_1b",
          "layer":"1b"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/bppsc/bppsc_bpill_2b.jpg",
          "id":"283_2b",
          "layer":"2b"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/bppsc/bppsc_xray.jpg",
          "id":"283_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/bppsc/bppsc_optical.jpg",
          "id":"283_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/bppsc/bppsc_optical_xray.jpg",
          "id":"283_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/bppsc/bppsc_scale.jpg",
          "id":"283_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/rosette/rosette.jpg",
      "title":"Rosette Nebula",
      "description":"A star-forming region 5,000 light years away in the constellation Monoceros.",
      "url":"https://chandra.harvard.edu/photo/2010/rosette",
      "id":"284",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/rosette/rosette_noFOV.jpg",
          "id":"284_noFOV",
          "layer":"noFOV"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/rosette/rosette_xray.jpg",
          "id":"284_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/rosette/rosette_optical.jpg",
          "id":"284_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/rosette/rosette_scale.jpg",
          "id":"284_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/a1758/a1758.jpg",
      "title":"Abell 1758",
      "description":"A composite image of the northern part of Abell 1758, located about 3.2 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2010/a1758",
      "id":"285",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/a1758/a1758_xray.jpg",
          "id":"285_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/a1758/a1758_radio.jpg",
          "id":"285_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/a1758/a1758_optical.jpg",
          "id":"285_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/a1758/a1758_scale.jpg",
          "id":"285_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/m87/m87.jpg",
      "title":"M87",
      "description":"A massive galaxy about 50 million light years away in the Virgo Cluster.",
      "url":"https://chandra.harvard.edu/photo/2010/m87",
      "id":"286",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/m87/m87_xray_radio.jpg",
          "id":"286_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/m87/m87_xray.jpg",
          "id":"286_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/m87/m87_radio.jpg",
          "id":"286_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/m87/m87_scale.jpg",
          "id":"286_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/antennae/antennae.jpg",
      "title":"Antennae",
      "description":"A pair of colliding galaxies about 62 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2010/antennae",
      "id":"287",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/antennae/antennae_xray.jpg",
          "id":"287_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/antennae/antennae_ir.jpg",
          "id":"287_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/antennae/antennae_optical.jpg",
          "id":"287_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/antennae/antennae_multipanel.jpg",
          "id":"287_multipanel",
          "layer":"multipanel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/antennae/antennae_wide_field.jpg",
          "id":"287_field",
          "layer":"field"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/antennae/antennae_scale.jpg",
          "id":"287_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/4c0058/4c0058.jpg",
      "title":"4C+00.58",
      "description":"A galaxy harboring a giant black hole about 780 million light years away.",
      "url":"https://chandra.harvard.edu/photo/2010/4c0058",
      "id":"288",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/4c0058/4c0058_xray.jpg",
          "id":"288_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/4c0058/4c0058_radio_alt.jpg",
          "id":"288_alt",
          "layer":"alt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/4c0058/4c0058_xray_radio.jpg",
          "id":"288_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/4c0058/sdss_wide.jpg",
          "id":"288_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/4c0058/4c0058_xray_alt.jpg",
          "id":"288_alt",
          "layer":"alt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/4c0058/4c0058_xray_radio_alt.jpg",
          "id":"288_alt",
          "layer":"alt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/4c0058/4c0058_xray_radio_scale.jpg",
          "id":"288_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/ngc7793/ngc7793.jpg",
      "title":"NGC 7793",
      "description":"A galaxy about 12.7 million light years away containing a so-called microquasar. ",
      "url":"https://chandra.harvard.edu/photo/2010/ngc7793",
      "id":"289",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc7793/n7793_xray_wide.jpg",
          "id":"289_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc7793/n7793_ha_wide.jpg",
          "id":"289_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc7793/n7793_optical_wide.jpg",
          "id":"289_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc7793/n7793_optical_ha_xray_wide.jpg",
          "id":"289_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc7793/n7793_xray_zoom.jpg",
          "id":"289_zoom",
          "layer":"zoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc7793/n7793_ha_zoom.jpg",
          "id":"289_zoom",
          "layer":"zoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc7793/n7793_ha_xray_zoom.jpg",
          "id":"289_zoom",
          "layer":"zoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc7793/stellar_bh_ill.jpg",
          "id":"289_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc7793/ngc7793_scale.jpg",
          "id":"289_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/cid42/cid42.jpg",
      "title":"CID-42",
      "description":"A source in the Cosmic Evolution Survey field thought to be   at a distance of almost 4 billion light years.",
      "url":"https://chandra.harvard.edu/photo/2010/cid42",
      "id":"290",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/cid42/cid42_xray.jpg",
          "id":"290_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/cid42/cid42_optical.jpg",
          "id":"290_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/cid42/cid42_scale.jpg",
          "id":"290_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/cid42/cid42_xray_scale.jpg",
          "id":"290_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/cid42/cid42_optical_scale.jpg",
          "id":"290_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/chcyg/chcyg.jpg",
      "title":"CH Cyg",
      "description":"A binary star system about 800 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2010/chcyg",
      "id":"291",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/chcyg/chcyg_xray_optical_radio.jpg",
          "id":"291_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/chcyg/chcyg_xray_closeup.jpg",
          "id":"291_closeup",
          "layer":"closeup"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/chcyg/chcyg_optical_closeup.jpg",
          "id":"291_closeup",
          "layer":"closeup"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/chcyg/chcyg_radio_closeup.jpg",
          "id":"291_closeup",
          "layer":"closeup"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/chcyg/chcyg_optical.jpg",
          "id":"291_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/chcyg/chcyg_xray_optical_radio_scale.jpg",
          "id":"291_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/chcyg/chcyg_scale.jpg",
          "id":"291_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/m31/m31.jpg",
      "title":"M31",
      "description":"A supermassive black hole in the center of Andromeda",
      "url":"https://chandra.harvard.edu/photo/2010/m31",
      "id":"292",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/m31/m31_optical.jpg",
          "id":"292_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/m31/m31_before.jpg",
          "id":"292_before",
          "layer":"before"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/m31/m31_after.jpg",
          "id":"292_after",
          "layer":"after"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/m31/m31_scale.jpg",
          "id":"292_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/m31/m31_before_scale.jpg",
          "id":"292_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/m31/m31_after_scale.jpg",
          "id":"292_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/n49/n49.jpg",
      "title":"N49",
      "description":"A supernova remnant located in the Large Magellenic Cloud",
      "url":"https://chandra.harvard.edu/photo/2010/n49",
      "id":"293",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/n49/n49_xray.jpg",
          "id":"293_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/n49/n49_optical.jpg",
          "id":"293_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/n49/n49_scale.jpg",
          "id":"293_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/h2356/h2356.jpg",
      "title":"H2356-309",
      "description":"A massive \"wall\" of galaxies at a distance of 400 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2010/h2356",
      "id":"294",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/h2356/h2356_ill.jpg",
          "id":"294_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/h2356/h2356_spec.jpg",
          "id":"294_spec",
          "layer":"spec"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/h2356/h2356_pie.jpg",
          "id":"294_pie",
          "layer":"pie"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/m82/m82.jpg",
      "title":"M82",
      "description":"The nearest starburst galaxy to Earth at a distance of 12 million light years.",
      "url":"https://chandra.harvard.edu/photo/2010/m82",
      "id":"295",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/m82/m82_ulxs.jpg",
          "id":"295_ulxs",
          "layer":"ulxs"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/m82/m82_comp.jpg",
          "id":"295_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/m82/m82_scale.jpg",
          "id":"295_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/a3376/a3376.jpg",
      "title":"Abell 3376",
      "description":"A cluster of galaxies about 614 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2010/a3376",
      "id":"296",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/a3376/a3376_xray.jpg",
          "id":"296_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/a3376/a3376_xray_peakWhite.jpg",
          "id":"296_peakWhite",
          "layer":"peakWhite"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/a3376/a3376_xray_optical.jpg",
          "id":"296_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/a3376/a3376_optical.jpg",
          "id":"296_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/a3376/a3376_radio.jpg",
          "id":"296_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/a3376//photo/2008/darkenergy/darkenergy_3panelA.jpg",
          "id":"296_3panelA",
          "layer":"3panelA"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/a3376/a3376_scale.jpg",
          "id":"296_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/g541/g541.jpg",
      "title":"G54.1+0.3",
      "description":"A supernova remnant about 20,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2010/g541",
      "id":"297",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/g541/g541_xray.jpg",
          "id":"297_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/g541/g541_ir_8m.jpg",
          "id":"297_8m",
          "layer":"8m"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/g541/g541_ir_24m.jpg",
          "id":"297_24m",
          "layer":"24m"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/g541/g541_scale.jpg",
          "id":"297_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/ngc1068/ngc1068.jpg",
      "title":"NGC 1068",
      "description":"A spiral galaxy about 50 million light years from Earth containing a supermassive black hole.",
      "url":"https://chandra.harvard.edu/photo/2010/ngc1068",
      "id":"298",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc1068/ngc1068_xray.jpg",
          "id":"298_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc1068/ngc1068_xray_peakWhite.jpg",
          "id":"298_peakWhite",
          "layer":"peakWhite"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc1068/ngc1068_optical.jpg",
          "id":"298_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc1068/ngc1068_radio.jpg",
          "id":"298_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc1068/ngc1068_scale.jpg",
          "id":"298_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a.jpg",
      "title":"M31",
      "description":"One of six galaxies in a study to examine properties of Type Ia supernovas.",
      "url":"https://chandra.harvard.edu/photo/2010/type1a",
      "id":"299",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_merg_nolabel.jpg",
          "id":"299_nolabel",
          "layer":"nolabel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_alt_nolabel.jpg",
          "id":"299_nolabel",
          "layer":"nolabel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_m31_comp.jpg",
          "id":"299_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_m31_xray.jpg",
          "id":"299_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_m31_optical.jpg",
          "id":"299_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_m31_ir.jpg",
          "id":"299_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_m32.jpg",
          "id":"299_m32",
          "layer":"m32"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_m105.jpg",
          "id":"299_m105",
          "layer":"m105"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_ngc3377.jpg",
          "id":"299_ngc3377",
          "layer":"ngc3377"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_ngc3585.jpg",
          "id":"299_ngc3585",
          "layer":"ngc3585"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_ngc4278.jpg",
          "id":"299_ngc4278",
          "layer":"ngc4278"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_scale.jpg",
          "id":"299_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_m32_scale.jpg",
          "id":"299_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_m105_scale.jpg",
          "id":"299_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_ngc3377_scale.jpg",
          "id":"299_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_ngc3585_scale.jpg",
          "id":"299_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/type1a/type1a_ngc4278_scale.jpg",
          "id":"299_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/sdss/sdss.jpg",
      "title":"SDSS J1254+0846",
      "description":"A system containing a pair of quasars about 4.6 billion light years away.",
      "url":"https://chandra.harvard.edu/photo/2010/sdss",
      "id":"300",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/sdss/sdss_xray.jpg",
          "id":"300_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/sdss/sdss_optical.jpg",
          "id":"300_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/sdss/sdss_scale.jpg",
          "id":"300_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/eso137/eso137.jpg",
      "title":"Abell 3627",
      "description":"A galaxy plunging into the cluster Abell 3627 about 230 million light years away.",
      "url":"https://chandra.harvard.edu/photo/2010/eso137",
      "id":"301",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/eso137/eso137_xray.jpg",
          "id":"301_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/eso137/eso137_xray_peakWhite.jpg",
          "id":"301_peakWhite",
          "layer":"peakWhite"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/eso137/eso137_ha.jpg",
          "id":"301_ha",
          "layer":"ha"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/eso137/eso137_optical.jpg",
          "id":"301_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/eso137/eso137_scale.jpg",
          "id":"301_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/sgra/sgra.jpg",
      "title":"Sagittarius A*",
      "description":"The supermassive black hole at the center of the Milky Way galaxy.",
      "url":"https://chandra.harvard.edu/photo/2010/sgra",
      "id":"302",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/sgra/sgra_opt_xray.jpg",
          "id":"302_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/sgra/sgra_super_close.jpg",
          "id":"302_close",
          "layer":"close"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/sgra/sgra_scale.jpg",
          "id":"302_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2010/ngc1399/ngc1399.jpg",
      "title":"NGC 1399",
      "description":"An elliptical galaxy in the Fornax cluster that contains an ultraluminous X-ray source.",
      "url":"https://chandra.harvard.edu/photo/2010/ngc1399",
      "id":"303",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc1399/ngc1399_xray.jpg",
          "id":"303_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc1399/ngc1399_optical.jpg",
          "id":"303_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2010/ngc1399/ngc1399_scale.jpg",
          "id":"303_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/typingsnrs/typingsnrs_g292.jpg",
      "title":"G292.0+1.8",
      "description":"Supernova remnants representing two different types of supernova explosions.",
      "url":"https://chandra.harvard.edu/photo/2009/typingsnrs",
      "id":"304",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/typingsnrs/typingsnrs_snr0548_xray.jpg",
          "id":"304_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/typingsnrs/typingsnrs_g292_xray.jpg",
          "id":"304_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/typingsnrs/typingsnrs_kepler_xray.jpg",
          "id":"304_xray",
          "layer":"xray"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/ngc6872/ngc6872.jpg",
      "title":"NGC 6872",
      "description":"A pair of colliding galaxies at a distance of about 180 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2009/ngc6872",
      "id":"305",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/ngc6872/ngc6872_xray.jpg",
          "id":"305_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/ngc6872/ngc6872_optical.jpg",
          "id":"305_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/ngc6872/ngc6872_xray_opt.jpg",
          "id":"305_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/ngc6872/ngc6872_ir.jpg",
          "id":"305_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/ngc6872/ngc6872_scale.jpg",
          "id":"305_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/crab/crab.jpg",
      "title":"Crab Nebula",
      "description":"The remnants of a star that exploded and that appeared in Earth's sky almost a thousand years ago. ",
      "url":"https://chandra.harvard.edu/photo/2009/crab",
      "id":"306",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/crab/crab_xray.jpg",
          "id":"306_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/crab/crab_ir.jpg",
          "id":"306_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/crab/crab_optical.jpg",
          "id":"306_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/crab/crab_scale.jpg",
          "id":"306_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/galactic/galactic.jpg",
      "title":"Galactic Center",
      "description":"The core of the Milky Way at a distance of some 26,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2009/galactic",
      "id":"307",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/galactic/galactic_multi.jpg",
          "id":"307_multi",
          "layer":"multi"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/galactic/galactic_xray.jpg",
          "id":"307_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/galactic/galactic_ir.jpg",
          "id":"307_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/galactic/galactic_optical.jpg",
          "id":"307_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/galactic/galactic_full.jpg",
          "id":"307_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/galactic/galactic_annotated.jpg",
          "id":"307_annotated",
          "layer":"annotated"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/galactic/galactic_scale.jpg",
          "id":"307_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/cassio/cassio.jpg",
      "title":"Cassiopeia A",
      "description":"A supernova remnant in the Milky Way with a neutron star at its center.",
      "url":"https://chandra.harvard.edu/photo/2009/cassio",
      "id":"308",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/cassio/cassio_ill.jpg",
          "id":"308_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/cassio/cassio_closeup.jpg",
          "id":"308_closeup",
          "layer":"closeup"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/cassio/cassio_neutron.jpg",
          "id":"308_neutron",
          "layer":"neutron"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/jkcs041/jkcs041.jpg",
      "title":"JKCS041",
      "description":"A galaxy cluster located about 10.2 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2009/jkcs041",
      "id":"309",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/jkcs041/jkcs041_xray.jpg",
          "id":"309_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/jkcs041/jkcs041_optical.jpg",
          "id":"309_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/jkcs041/jkcs041_scale.jpg",
          "id":"309_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/ngc6240/ngc6240.jpg",
      "title":"NGC 6240",
      "description":"A galaxy about 330 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2009/ngc6240",
      "id":"310",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/ngc6240/ngc6240_xray_optical.jpg",
          "id":"310_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/ngc6240/ngc6240_xray_crop.jpg",
          "id":"310_crop",
          "layer":"crop"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/ngc6240/ngc6240_optical_crop.jpg",
          "id":"310_crop",
          "layer":"crop"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/ngc6240/ngc6240_xray.jpg",
          "id":"310_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/ngc6240/ngc6240_optical.jpg",
          "id":"310_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/ngc6240/ngc6240_scale.jpg",
          "id":"310_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/gcenter/gcenter.jpg",
      "title":"Galactic Center",
      "description":"A 400 by 900 light-year mosaic of images located about 26,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2009/gcenter",
      "id":"311",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/gcenter/gcenter_sm.jpg",
          "id":"311_sm",
          "layer":"sm"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/gcenter/gcenter_uncropped.jpg",
          "id":"311_uncropped",
          "layer":"uncropped"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/gcenter/gcenter_scale.jpg",
          "id":"311_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/hydra/hydra.jpg",
      "title":"Hydra A",
      "description":"A galaxy cluster about 840 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2009/hydra",
      "id":"312",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/hydra/hydra_xray.jpg",
          "id":"312_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/hydra/hydra_radio.jpg",
          "id":"312_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/hydra/hydra_optical.jpg",
          "id":"312_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/hydra/hydra_scale.jpg",
          "id":"312_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/cygx1/cygx1.jpg",
      "title":"Cygnus X-1",
      "description":"A black hole in close orbit around a blue supergiant star.",
      "url":"https://chandra.harvard.edu/photo/2009/cygx1",
      "id":"313",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/cygx1/cygx1_scale.jpg",
          "id":"313_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/cepb/cepb.jpg",
      "title":"Cepheus B",
      "description":"A cloud of molecular hydrogen in the Milky Way about 2,400 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2009/cepb",
      "id":"314",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/cepb/cepb_labelC.jpg",
          "id":"314_labelC",
          "layer":"labelC"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/cepb/cepb_xray.jpg",
          "id":"314_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/cepb/cepb_ir.jpg",
          "id":"314_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/cepb/cepb_scale.jpg",
          "id":"314_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/e0102/e0102.jpg",
      "title":"E0102-72.3",
      "description":"Officially known as 1E0102.2-7129, a supernova remnant in the Small Magellanic Cloud.",
      "url":"https://chandra.harvard.edu/photo/2009/e0102",
      "id":"315",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/e0102/e0102_xray.jpg",
          "id":"315_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/e0102/e0102_opt.jpg",
          "id":"315_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/e0102/e0102_xray_opt.jpg",
          "id":"315_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/e0102/e0102_smc.jpg",
          "id":"315_smc",
          "layer":"smc"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/e0102/e0102_scale.jpg",
          "id":"315_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/stephq/stephq.jpg",
      "title":"Stephan's Quintet",
      "description":"A group of galaxies that is located about 280 million light years from Earth.",
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      "id":"316",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/stephq/stephq_xray.jpg",
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          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/stephq/stephq_optical.jpg",
          "id":"316_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/stephq/stephq_full.jpg",
          "id":"316_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/stephq/stephq_labelled.jpg",
          "id":"316_labelled",
          "layer":"labelled"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/stephq/stephq_scale.jpg",
          "id":"316_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/rcw86/rcw86.jpg",
      "title":"RCW 86",
      "description":"A supernova remnant in the Milky Way, about 8,200 light years from Earth.",
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      "id":"317",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/rcw86/rcw86_scale.jpg",
          "id":"317_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/labs/labs.jpg",
      "title":"Lyman Alpha Blobs",
      "description":"Giant reservoirs of hydrogen gas about 10 billion light years away.",
      "url":"https://chandra.harvard.edu/photo/2009/labs",
      "id":"318",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_comp.jpg",
          "id":"318_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_xray.jpg",
          "id":"318_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_ir.jpg",
          "id":"318_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_lym.jpg",
          "id":"318_lym",
          "layer":"lym"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_optical.jpg",
          "id":"318_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_noxray.jpg",
          "id":"318_noxray",
          "layer":"noxray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_composite.jpg",
          "id":"318_composite",
          "layer":"composite"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_withoutxray.jpg",
          "id":"318_withoutxray",
          "layer":"withoutxray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_bhole.jpg",
          "id":"318_bhole",
          "layer":"bhole"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_wind.jpg",
          "id":"318_wind",
          "layer":"wind"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_blob.jpg",
          "id":"318_blob",
          "layer":"blob"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_optical_markers.jpg",
          "id":"318_markers",
          "layer":"markers"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_lyman.jpg",
          "id":"318_lyman",
          "layer":"lyman"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_lyman_markers.jpg",
          "id":"318_markers",
          "layer":"markers"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_optical_gal_density.jpg",
          "id":"318_density",
          "layer":"density"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/labs/labs_scale.jpg",
          "id":"318_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/snr0104/snr0104.jpg",
      "title":"SNR 0104-72.3",
      "description":"A supernova remnant located in the Small Magellanic Cloud, about 190,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2009/snr0104",
      "id":"319",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/snr0104/snr0104_xray.jpg",
          "id":"319_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/snr0104/snr0104_ir.jpg",
          "id":"319_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/snr0104/snr0104_xray_ir.jpg",
          "id":"319_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/snr0104/snr0104_scale.jpg",
          "id":"319_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/hdf/hdf.jpg",
      "title":"HDF 130",
      "description":"A supermassive black hole in a distant galaxy, about 10 billion light years away.",
      "url":"https://chandra.harvard.edu/photo/2009/hdf",
      "id":"320",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/hdf/hdf_xray.jpg",
          "id":"320_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/hdf/hdf_xray_radio.jpg",
          "id":"320_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/hdf/hdf_opt.jpg",
          "id":"320_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/hdf/hdf_scale.jpg",
          "id":"320_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/3c305/3c305.jpg",
      "title":"3C305",
      "description":"A galaxy, about 600 million light years away, with a supermassive black hole at its center.",
      "url":"https://chandra.harvard.edu/photo/2009/3c305",
      "id":"321",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/3c305/3c305_xray.jpg",
          "id":"321_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/3c305/3c305_radio.jpg",
          "id":"321_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/3c305/3c305_opt.jpg",
          "id":"321_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/3c305/3c305_scale.jpg",
          "id":"321_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/gridge/gridge.jpg",
      "title":"Galactic X-ray Ridge",
      "description":"A ridge-like structure near the center of the Milky Way of X-ray emission discovered by earlier telescopes.",
      "url":"https://chandra.harvard.edu/photo/2009/gridge",
      "id":"322",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/gridge/gridge_xray.jpg",
          "id":"322_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/gridge/gridge_ir.jpg",
          "id":"322_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/gridge/gridge_scale.jpg",
          "id":"322_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/macs/macs.jpg",
      "title":"MACSJ0717.5+3745",
      "description":"One of the most complex galaxy clusters, located about 5.4 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2009/macs",
      "id":"323",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/macs/macs_labeled_b.jpg",
          "id":"323_b",
          "layer":"b"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/macs/macs_xray.jpg",
          "id":"323_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/macs/macs_opt.jpg",
          "id":"323_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/macs/macs_xray_full.jpg",
          "id":"323_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/macs/macs_xray_opt_full.jpg",
          "id":"323_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/macs/macs_opt_full.jpg",
          "id":"323_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/macs/macs_temperature_map.gif",
          "id":"323_map.gif",
          "layer":"map.gif"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/macs/macs_scale.jpg",
          "id":"323_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/b1509/b1509.jpg",
      "title":"PSR B1509-58",
      "description":"A 1700-year-old pulsar and its nebula, located about 17,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2009/b1509",
      "id":"324",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/b1509/b1509_2mass.jpg",
          "id":"324_2mass",
          "layer":"2mass"
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        {
          "src":"https://chandra.harvard.edu/photo/2009/b1509/b1509_2mass_xray_radio.jpg",
          "id":"324_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/b1509/b1509_xray_radio.jpg",
          "id":"324_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/b1509/b1509_halpha_xray.jpg",
          "id":"324_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/b1509/b1509_radio.jpg",
          "id":"324_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/b1509/b1509_halpha.jpg",
          "id":"324_halpha",
          "layer":"halpha"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/b1509/b1509_crab_comp.jpg",
          "id":"324_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/b1509/b1509_zoom.jpg",
          "id":"324_zoom",
          "layer":"zoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/b1509/b1509_scale.jpg",
          "id":"324_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915.jpg",
      "title":"GRS 1915+105",
      "description":"A stellar-mass black hole with about 14 times the Sun's mass in the Milky Way.",
      "url":"https://chandra.harvard.edu/photo/2009/g1915",
      "id":"325",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915_xray.jpg",
          "id":"325_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915_optical.jpg",
          "id":"325_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915_zoom1.jpg",
          "id":"325_zoom1",
          "layer":"zoom1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915_zoom2.jpg",
          "id":"325_zoom2",
          "layer":"zoom2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915_zoom3.jpg",
          "id":"325_zoom3",
          "layer":"zoom3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915_zoom4.jpg",
          "id":"325_zoom4",
          "layer":"zoom4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915_zoom5.jpg",
          "id":"325_zoom5",
          "layer":"zoom5"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915_zoom6.jpg",
          "id":"325_zoom6",
          "layer":"zoom6"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915_stills1.jpg",
          "id":"325_stills1",
          "layer":"stills1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915_stills2.jpg",
          "id":"325_stills2",
          "layer":"stills2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915_stills3.jpg",
          "id":"325_stills3",
          "layer":"stills3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915_stills4.jpg",
          "id":"325_stills4",
          "layer":"stills4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/g1915/g1915_scale.jpg",
          "id":"325_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/medusa/medusa.jpg",
      "title":"NGC 4194",
      "description":"A galaxy lies about 110 million light years away",
      "url":"https://chandra.harvard.edu/photo/2009/medusa",
      "id":"326",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/medusa/medusa_xray.jpg",
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          "src":"https://chandra.harvard.edu/photo/2009/medusa/medusa_annot.jpg",
          "id":"326_annot",
          "layer":"annot"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/medusa/medusa_optic.jpg",
          "id":"326_optic",
          "layer":"optic"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/medusa/medusa_scale.jpg",
          "id":"326_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/j0108/j0108.jpg",
      "title":"PSR J0108-1431",
      "description":"The oldest pulsar detected in X-rays at a distance of about 770 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2009/j0108",
      "id":"327",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/j0108/j0108_opt_xray.jpg",
          "id":"327_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2009/j0108/j0108_xray.jpg",
          "id":"327_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/j0108/j0108_opt.jpg",
          "id":"327_opt",
          "layer":"opt"
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        {
          "src":"https://chandra.harvard.edu/photo/2009/j0108/j0108_xray_opt_zm.jpg",
          "id":"327_zm",
          "layer":"zm"
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        {
          "src":"https://chandra.harvard.edu/photo/2009/j0108/j0108_xray_zm.jpg",
          "id":"327_zm",
          "layer":"zm"
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        {
          "src":"https://chandra.harvard.edu/photo/2009/j0108/j0108_opt_zm.jpg",
          "id":"327_zm",
          "layer":"zm"
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        {
          "src":"https://chandra.harvard.edu/photo/2009/j0108/j0108_ill.jpg",
          "id":"327_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/j0108/j0108_scale.jpg",
          "id":"327_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/tycho/tycho.jpg",
      "title":"Tycho's Supernova Remnant",
      "description":"The hot, expanding debris of a supernova observed in 1572.",
      "url":"https://chandra.harvard.edu/photo/2009/tycho",
      "id":"328",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2009/tycho/tycho_scale.jpg",
          "id":"328_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/m101/m101.jpg",
      "title":"M101",
      "description":"A face-on spiral galaxy about 22 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2009/m101",
      "id":"329",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/m101/m101_comp.jpg",
          "id":"329_comp",
          "layer":"comp"
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          "src":"https://chandra.harvard.edu/photo/2009/m101/m101_xray.jpg",
          "id":"329_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/m101/m101_opt.jpg",
          "id":"329_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/m101/m101_ir.jpg",
          "id":"329_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/m101/m101_br_comp.jpg",
          "id":"329_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/m101/m101_br_xray.jpg",
          "id":"329_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/m101/m101_br_opt.jpg",
          "id":"329_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/m101/m101_br_ir.jpg",
          "id":"329_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/m101/m101_scale.jpg",
          "id":"329_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/cena/cena.jpg",
      "title":"Centaurus A",
      "description":"An active galaxy at a distance of 10 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2009/cena",
      "id":"330",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/cena/cena_xray.jpg",
          "id":"330_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/cena/cena_scale.jpg",
          "id":"330_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/n604/n604.jpg",
      "title":"NGC 604",
      "description":"The largest region of star formation in the nearby galaxy M33",
      "url":"https://chandra.harvard.edu/photo/2009/n604",
      "id":"331",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/n604/n604_anot.jpg",
          "id":"331_anot",
          "layer":"anot"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/n604/n604_xray.jpg",
          "id":"331_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/n604/n604_opt.jpg",
          "id":"331_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/n604/n604_scale.jpg",
          "id":"331_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/casa/casa.jpg",
      "title":"Cassiopeia A",
      "description":"The supernova remnant that was Chandra's \"First Light\" has been observed over time.",
      "url":"https://chandra.harvard.edu/photo/2009/casa",
      "id":"332",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa/casa_2000.jpg",
          "id":"332_2000",
          "layer":"2000"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa/casa_2002.jpg",
          "id":"332_2002",
          "layer":"2002"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa/casa_2004.jpg",
          "id":"332_2004",
          "layer":"2004"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa/casa_2007.jpg",
          "id":"332_2007",
          "layer":"2007"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa/casa_4pan.jpg",
          "id":"332_4pan",
          "layer":"4pan"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa/casa_xray00.jpg",
          "id":"332_xray00",
          "layer":"xray00"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa/casa_xray02.jpg",
          "id":"332_xray02",
          "layer":"xray02"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa/casa_xray04.jpg",
          "id":"332_xray04",
          "layer":"xray04"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa/casa_xray07.jpg",
          "id":"332_xray07",
          "layer":"xray07"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa/casa_scale.jpg",
          "id":"332_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2009/casa2/casa2.jpg",
      "title":"Cassiopeia A",
      "description":"A multiwavelength three-dimensional (3-D) reconstruction of a supernova remnant has been created. ",
      "url":"https://chandra.harvard.edu/photo/2009/casa2",
      "id":"333",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa2/casa2_3d.jpg",
          "id":"333_3d",
          "layer":"3d"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa2/casa2_3d_still1.jpg",
          "id":"333_still1",
          "layer":"still1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa2/casa2_3d_still2.jpg",
          "id":"333_still2",
          "layer":"still2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa2/casa2_3d_still3.jpg",
          "id":"333_still3",
          "layer":"still3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa2/casa2_3d_still4.jpg",
          "id":"333_still4",
          "layer":"still4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2009/casa2/casa2_3d_still5.jpg",
          "id":"333_still5",
          "layer":"still5"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy.jpg",
      "title":"Abell 85",
      "description":"A galaxy cluster located about 740 million light years from Earth. ",
      "url":"https://chandra.harvard.edu/photo/2008/darkenergy",
      "id":"334",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_abell85.jpg",
          "id":"334_abell85",
          "layer":"abell85"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_abell2163.jpg",
          "id":"334_abell2163",
          "layer":"abell2163"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_abell2597.jpg",
          "id":"334_abell2597",
          "layer":"abell2597"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_cl0230.jpg",
          "id":"334_cl0230",
          "layer":"cl0230"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_cl1002.jpg",
          "id":"334_cl1002",
          "layer":"cl1002"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_cl1226.jpg",
          "id":"334_cl1226",
          "layer":"cl1226"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_6panelA.jpg",
          "id":"334_6panelA",
          "layer":"6panelA"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_3panelA.jpg",
          "id":"334_3panelA",
          "layer":"3panelA"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_xray.jpg",
          "id":"334_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_optical.jpg",
          "id":"334_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_comp.jpg",
          "id":"334_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_ill.jpg",
          "id":"334_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_pie.jpg",
          "id":"334_pie",
          "layer":"pie"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy//photo/2008/darkenergy/media/scales_nosymb_npars.jpg",
          "id":"334_npars",
          "layer":"npars"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy//photo/2008/darkenergy/media/scales_nosymb_noDE.jpg",
          "id":"334_noDE",
          "layer":"noDE"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy//photo/2008/darkenergy/media/scales_nosymb.jpg",
          "id":"334_nosymb",
          "layer":"nosymb"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/darkenergy/darkenergy_scale.jpg",
          "id":"334_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/30dor/30dor.jpg",
      "title":"Tarantula Nebula",
      "description":"30 Doradus is one of the largest massive star forming regions close to the Milky Way.",
      "url":"https://chandra.harvard.edu/photo/2008/30dor",
      "id":"335",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/30dor/30dor_bub.jpg",
          "id":"335_bub",
          "layer":"bub"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/30dor/30dor_snr0509_lmc.jpg",
          "id":"335_lmc",
          "layer":"lmc"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/30dor/30dor_scale.jpg",
          "id":"335_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/m101/m101.jpg",
      "title":"M101",
      "description":"A large spiral galaxy about 25 million light years away in the constellation Ursa Major. ",
      "url":"https://chandra.harvard.edu/photo/2008/m101",
      "id":"336",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/m101/m101_scale.jpg",
          "id":"336_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/m84/m84.jpg",
      "title":"M84",
      "description":"A massive elliptical galaxy about 55 million light years away in the Virgo Cluster.",
      "url":"https://chandra.harvard.edu/photo/2008/m84",
      "id":"337",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/m84/m84_xray.jpg",
          "id":"337_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m84/m84_xray_radio.jpg",
          "id":"337_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m84/m84_radio.jpg",
          "id":"337_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m84/m84_optical.jpg",
          "id":"337_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m84/m84_optical_radio.jpg",
          "id":"337_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m84/m84_scale.jpg",
          "id":"337_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/crab/crab.jpg",
      "title":"Crab Nebula",
      "description":"A supernova remnant and pulsar located 6,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2008/crab",
      "id":"338",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/crab/crab_scale.jpg",
          "id":"338_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/bullet/bullet.jpg",
      "title":"Bullet Cluster",
      "description":"A collision of two large clusters of galaxies about 3.8 billion light years away. ",
      "url":"https://chandra.harvard.edu/photo/2008/bullet",
      "id":"339",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/bullet/bullet_pullout.jpg",
          "id":"339_pullout",
          "layer":"pullout"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/bullet/bullet_anti.jpg",
          "id":"339_anti",
          "layer":"anti"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/bullet/bullet_anti_ill.jpg",
          "id":"339_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/bullet/bullet_xray.jpg",
          "id":"339_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/bullet/bullet_optical.jpg",
          "id":"339_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/bullet/bullet_scale.jpg",
          "id":"339_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/a521/a521.jpg",
      "title":"Abell 521",
      "description":"This composite image shows  Abell 521, located about 2.9 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2008/a521",
      "id":"340",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/a521/a521_xray.jpg",
          "id":"340_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/a521/a521_radio.jpg",
          "id":"340_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/a521/a521_ir.jpg",
          "id":"340_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/a521/a521_xray_radio_ir.jpg",
          "id":"340_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/a521/a521_scale.jpg",
          "id":"340_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/rcw108/rcw108.jpg",
      "title":"RCW 108",
      "description":"A region of active star formation about 4,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2008/rcw108",
      "id":"341",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/rcw108/rcw108_xray_br.jpg",
          "id":"341_br",
          "layer":"br"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/rcw108/rcw108_xray.jpg",
          "id":"341_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/rcw108/rcw108_ir.jpg",
          "id":"341_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/rcw108/rcw108_scale.jpg",
          "id":"341_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/sn1996/sn1996.jpg",
      "title":"SN 1996cr",
      "description":"A supernova in Circinus galaxy about 12 million light years away.",
      "url":"https://chandra.harvard.edu/photo/2008/sn1996",
      "id":"342",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/sn1996/sn1996_xray.jpg",
          "id":"342_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/sn1996/sn1996_comp.jpg",
          "id":"342_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/sn1996/sn1996_optical.jpg",
          "id":"342_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/sn1996/sn1996_mult.jpg",
          "id":"342_mult",
          "layer":"mult"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/sn1996/sn1996_eso.jpg",
          "id":"342_eso",
          "layer":"eso"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/a1689/a1689.jpg",
      "title":"Abell 1689",
      "description":"A massive cluster of galaxies located about 2.3 billion light years away.",
      "url":"https://chandra.harvard.edu/photo/2008/a1689",
      "id":"343",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/a1689/a1689_xray.jpg",
          "id":"343_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/a1689/a1689_opt.jpg",
          "id":"343_opt",
          "layer":"opt"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/macs/macs.jpg",
      "title":"MACS J0025.4-1222",
      "description":"A powerful collision of two galaxy clusters about 5.6 billion light years away. ",
      "url":"https://chandra.harvard.edu/photo/2008/macs",
      "id":"344",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/macs/macs_xray.jpg",
          "id":"344_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/macs/macs_xray_lens.jpg",
          "id":"344_lens",
          "layer":"lens"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/macs/macs_xray_optical.jpg",
          "id":"344_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/macs/macs_optical.jpg",
          "id":"344_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/macs/macs_lens.jpg",
          "id":"344_lens",
          "layer":"lens"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/macs/macs_scale.jpg",
          "id":"344_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/perseus/perseus.jpg",
      "title":"Perseus A",
      "description":"The central region of a rich galaxy cluster about 250 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2008/perseus",
      "id":"345",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/perseus/perseus_xray.jpg",
          "id":"345_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/perseus/perseus_optic.jpg",
          "id":"345_optic",
          "layer":"optic"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/perseus/perseus_radio.jpg",
          "id":"345_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/perseus/perseus_scale.jpg",
          "id":"345_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/m87/m87.jpg",
      "title":"M87",
      "description":"The largest galaxy in the Virgo cluster of galaxies at a distance of 60 million light years away. ",
      "url":"https://chandra.harvard.edu/photo/2008/m87",
      "id":"346",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/m87/m87_xray.jpg",
          "id":"346_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m87/m87_optic.jpg",
          "id":"346_optic",
          "layer":"optic"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m87/m87_gboptic.jpg",
          "id":"346_gboptic",
          "layer":"gboptic"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m87/m87_radio.jpg",
          "id":"346_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m87/m87_scale.jpg",
          "id":"346_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/catseye/catseye.jpg",
      "title":"NGC 6543",
      "description":"This planetary nebula is located about 3,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2008/catseye",
      "id":"347",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/catseye/catseye_xray.jpg",
          "id":"347_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/catseye/catseye_optical.jpg",
          "id":"347_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/catseye/catseye_scale.jpg",
          "id":"347_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/ngc4649/ngc4649.jpg",
      "title":"NGC 4649",
      "description":"The elliptical galaxy NGC 4649 reveals diffuse hot gas dotted with many point-like sources.",
      "url":"https://chandra.harvard.edu/photo/2008/ngc4649",
      "id":"348",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc4649/ngc4649_xray.jpg",
          "id":"348_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc4649/ngc4649_fov_xray.jpg",
          "id":"348_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc4649/ngc4649_footprint.jpg",
          "id":"348_footprint",
          "layer":"footprint"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc4649/ngc4649_optical.jpg",
          "id":"348_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc4649/ngc4649_fov_optical.jpg",
          "id":"348_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc4649/ngc4649_scale.jpg",
          "id":"348_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/sn1006c/sn1006c.jpg",
      "title":"SN 1006",
      "description":"A supernova remnant about 7,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2008/sn1006c",
      "id":"349",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/sn1006c/sn1006c_xray.2color.jpg",
          "id":"349_xray.2color",
          "layer":"xray.2color"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/sn1006c/sn1006c_xray.jpg",
          "id":"349_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/sn1006c/sn1006c_radio.jpg",
          "id":"349_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/sn1006c/sn1006c_optical.jpg",
          "id":"349_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/sn1006c/sn1006c_hubble.jpg",
          "id":"349_hubble",
          "layer":"hubble"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/sn1006c/sn1006c_compwithbox.jpg",
          "id":"349_compwithbox",
          "layer":"compwithbox"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/sn1006c/sn1006c_scale.jpg",
          "id":"349_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/m81/m81.jpg",
      "title":"M81",
      "description":"A spiral galaxy located about 12 million light years from Earth. ",
      "url":"https://chandra.harvard.edu/photo/2008/m81",
      "id":"350",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/m81/m81_xray.jpg ",
          "id":"350_xray ",
          "layer":"xray "
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m81/m81_comp.jpg",
          "id":"350_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m81/m81_pan.jpg",
          "id":"350_pan",
          "layer":"pan"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m81/m81_ir.jpg ",
          "id":"350_ir ",
          "layer":"ir "
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m81/m81_optical.jpg",
          "id":"350_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/m81/m81_uv.jpg",
          "id":"350_uv",
          "layer":"uv"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/w28/w28.jpg",
      "title":"W28",
      "description":"A supernova remnant in the Milky Way thought to be between 35,000 and 150,000 years old. ",
      "url":"https://chandra.harvard.edu/photo/2008/w28",
      "id":"351",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/w28/w28_chandra.jpg",
          "id":"351_chandra",
          "layer":"chandra"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/w28/w28_composite.jpg",
          "id":"351_composite",
          "layer":"composite"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/w28/w28_optical.only.jpg",
          "id":"351_optical.only",
          "layer":"optical.only"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/w28/w28_radio.jpg",
          "id":"351_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/w28/w28_rosat.jpg",
          "id":"351_rosat",
          "layer":"rosat"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/w28/w28_rosat_optical_radio.jpg",
          "id":"351_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/w28/w28_rosat_radio.jpg",
          "id":"351_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/w28/w28_scale.jpg",
          "id":"351_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/sn2008d/sn2008d.jpg",
      "title":"SN 2008D",
      "description":"Chandra X-ray image of the region around SN 2008D, about 10 days after the supernova explosion.",
      "url":"https://chandra.harvard.edu/photo/2008/sn2008d",
      "id":"352",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/sn2008d/sn2008d_scale.jpg",
          "id":"352_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/g19/g19.jpg",
      "title":"G1.9+0.3",
      "description":"The most recent supernova in our Galaxy, discovered by tracking the rapid expansion of its remains.",
      "url":"https://chandra.harvard.edu/photo/2008/g19",
      "id":"353",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_xray_radio.1985.jpg",
          "id":"353_radio.1985",
          "layer":"radio.1985"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_xray.jpg",
          "id":"353_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_radio_1985.jpg",
          "id":"353_1985",
          "layer":"1985"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_radio_2008.jpg",
          "id":"353_2008",
          "layer":"2008"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_mw_lb.jpg",
          "id":"353_lb",
          "layer":"lb"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_mw_un.jpg",
          "id":"353_un",
          "layer":"un"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_E.jpg",
          "id":"353_E",
          "layer":"E"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_optical_gc.jpg",
          "id":"353_gc",
          "layer":"gc"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_optical_unl.jpg",
          "id":"353_unl",
          "layer":"unl"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_2mass_xray_radio_mosaic.jpg",
          "id":"353_mosaic",
          "layer":"mosaic"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_2mass_mosaic.jpg",
          "id":"353_mosaic",
          "layer":"mosaic"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_xray_radio_nir.jpg",
          "id":"353_nir",
          "layer":"nir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_composite.jpg",
          "id":"353_composite",
          "layer":"composite"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/g19/g19_scale.jpg",
          "id":"353_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/gclust/n6121.jpg",
      "title":"NGC 6121",
      "description":"A globular cluster located in the Milky Way galaxy.",
      "url":"https://chandra.harvard.edu/photo/2008/gclust",
      "id":"354",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/gclust/n6121.jpg",
          "id":"354_n6121",
          "layer":"n6121"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/gclust/n6397.jpg",
          "id":"354_n6397",
          "layer":"n6397"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/gclust/h-396-A.jpg",
          "id":"354_h-396-A",
          "layer":"h-396-A"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/gclust/http://hubblesite.org/newscenter/archive/releases/2003/21/image/a/",
          "id":"354_http://hubblesite.org/newscenter/archive/releases/2003/21/image/a/",
          "layer":"http://hubblesite.org/newscenter/archive/releases/2003/21/image/a/"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/gclust/n6397_scalebar.jpg",
          "id":"354_scalebar",
          "layer":"scalebar"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/gclust/gclust_scale.jpg",
          "id":"354_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/dgtau/dgtau.jpg",
      "title":"DG Tau",
      "description":"A young star in the Taurus region of star formation, about 450 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2008/dgtau",
      "id":"355",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/dgtau/dgtau_xray.jpg",
          "id":"355_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/dgtau/dgtau_ill.jpg",
          "id":"355_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/dgtau/dgtau_scale.jpg",
          "id":"355_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/snr0509/snr0509.jpg",
      "title":"SNR 0509-67.5",
      "description":"A supernova remnant with a light echo in the Large Magellanic Cloud. ",
      "url":"https://chandra.harvard.edu/photo/2008/snr0509",
      "id":"356",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/snr0509/snr0509_xray.jpg",
          "id":"356_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/snr0509/snr0509_ill.jpg",
          "id":"356_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/snr0509/snr0509_optical_1.jpg",
          "id":"356_1",
          "layer":"1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/snr0509/snr0509_optical_2.jpg",
          "id":"356_2",
          "layer":"2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/snr0509/snr0509_optical_3.jpg",
          "id":"356_3",
          "layer":"3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/snr0509/snr0509_optical_4.jpg",
          "id":"356_4",
          "layer":"4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/snr0509/snr0509_optical_5.jpg",
          "id":"356_5",
          "layer":"5"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/snr0509/snr0509_lmc.jpg",
          "id":"356_lmc",
          "layer":"lmc"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/snr0509/snr0509_scale.jpg",
          "id":"356_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/n132d/n132d.jpg",
      "title":"N132D",
      "description":"A supernova remnant, about 3,000 years old, in the Large Magellanic Cloud.",
      "url":"https://chandra.harvard.edu/photo/2008/n132d",
      "id":"357",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/n132d/n132d_scale.jpg",
          "id":"357_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/kes75/kes75.jpg",
      "title":"Kes 75",
      "description":"A supernova remnant located almost 20,000 light years from Earth. ",
      "url":"https://chandra.harvard.edu/photo/2008/kes75",
      "id":"358",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/kes75/kes75_pwn.jpg",
          "id":"358_pwn",
          "layer":"pwn"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/kes75/kes75_scale.jpg",
          "id":"358_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/ngc1404/ngc1404.jpg",
      "title":"SN 2007on in NGC 1404",
      "description":"A supernova that appeared in the galaxy NGC 1404 in late 2007.",
      "url":"https://chandra.harvard.edu/photo/2008/ngc1404",
      "id":"359",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc1404/ngc1404_xray.jpg",
          "id":"359_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc1404/ngc1404_mrk.jpg",
          "id":"359_mrk",
          "layer":"mrk"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc1404/ngc1404_fornax.jpg",
          "id":"359_fornax",
          "layer":"fornax"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc1404/ngc1404_fornax_mrk.jpg",
          "id":"359_mrk",
          "layer":"mrk"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc1404/ngc1404_swift.jpg",
          "id":"359_swift",
          "layer":"swift"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc1404/ngc1404_hst.jpg",
          "id":"359_hst",
          "layer":"hst"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/ngc1132/ngc1132.jpg",
      "title":"NGC 1132",
      "description":"An elliptical galaxy at a distance of about 300 million light years.",
      "url":"https://chandra.harvard.edu/photo/2008/ngc1132",
      "id":"360",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc1132/ngc1132_xray.jpg",
          "id":"360_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc1132/ngc1132_optical.jpg",
          "id":"360_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc1132/ngc1132_hst.jpg",
          "id":"360_hst",
          "layer":"hst"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/ngc1132/ngc1132_scale.jpg",
          "id":"360_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/wd2/wd2.jpg",
      "title":"Westerlund 2",
      "description":"A star cluster about 20,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2008/wd2",
      "id":"361",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/wd2/wd2_xrayir.jpg",
          "id":"361_xrayir",
          "layer":"xrayir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/wd2/wd2_irBoxFoV.jpg",
          "id":"361_irBoxFoV",
          "layer":"irBoxFoV"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/wd2/wd2_irxraybox.jpg",
          "id":"361_irxraybox",
          "layer":"irxraybox"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/wd2/wd2_scale.jpg",
          "id":"361_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/bh_spin/bh_spin_4374_xray.jpg",
      "title":"NGC 4374",
      "description":"A sample of nine galaxies each containing supermassive black holes in their centers.",
      "url":"https://chandra.harvard.edu/photo/2008/bh_spin",
      "id":"362",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/bh_spin//photo/2006/bhcen/bhe_closeup.jpg",
          "id":"362_closeup",
          "layer":"closeup"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/bh_spin//photo/2006/bhcen/bhe_fuel.jpg",
          "id":"362_fuel",
          "layer":"fuel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/bh_spin//photo/2006/bhcen/bhe_cavities.jpg",
          "id":"362_cavities",
          "layer":"cavities"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2008/cena/cena.jpg",
      "title":"Centaurus A",
      "description":"Jet Power and Black Hole Assortment Revealed in New Chandra Image",
      "url":"https://chandra.harvard.edu/photo/2008/cena",
      "id":"363",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2008/cena/cena_comp.jpg",
          "id":"363_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/cena/cena_multi.jpg",
          "id":"363_multi",
          "layer":"multi"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/cena/cena_radio.jpg",
          "id":"363_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/cena/cena_optical.jpg",
          "id":"363_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2008/cena/cena_scale.jpg",
          "id":"363_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/3c321/3c321.jpg",
      "title":"3C321",
      "description":"Black Hole Fires at Neighboring Galaxy",
      "url":"https://chandra.harvard.edu/photo/2007/3c321",
      "id":"364",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c321/3c321_multi.jpg",
          "id":"364_multi",
          "layer":"multi"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c321/3c321_composite.jpg",
          "id":"364_composite",
          "layer":"composite"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c321/3c321_xray.jpg",
          "id":"364_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c321/3c321_radio.jpg",
          "id":"364_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c321/3c321_optical.jpg",
          "id":"364_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c321/3c321_uv.jpg",
          "id":"364_uv",
          "layer":"uv"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c321/3c321_full_field.jpg",
          "id":"364_field",
          "layer":"field"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c321/3c321_illustration.jpg",
          "id":"364_illustration",
          "layer":"illustration"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c321/3c321_scale.jpg",
          "id":"364_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/m51/m51.jpg",
      "title":"Whirlpool Galaxy",
      "description":"A spiral galaxy 31 million light years from Earth. ",
      "url":"https://chandra.harvard.edu/photo/2007/m51",
      "id":"365",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/m51/m51_multi_A.jpg",
          "id":"365_A",
          "layer":"A"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m51/m51_multi_B.jpg",
          "id":"365_B",
          "layer":"B"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m51/m51_xray.jpg",
          "id":"365_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m51/m51_xray_purple.jpg",
          "id":"365_purple",
          "layer":"purple"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m51/m51_optical.jpg",
          "id":"365_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m51/m51_optical_green.jpg",
          "id":"365_green",
          "layer":"green"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m51/m51_ir.jpg",
          "id":"365_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m51/m51_ir_red.jpg",
          "id":"365_red",
          "layer":"red"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m51/m51_uv.jpg",
          "id":"365_uv",
          "layer":"uv"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m51/m51_uv_blue.jpg",
          "id":"365_blue",
          "layer":"blue"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m51/m51_scale.jpg",
          "id":"365_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/puppis/puppis.jpg",
      "title":"RX J0822-4300 in Puppis A",
      "description":"A neutron star created when a massive star exploded about 3,700 years ago.",
      "url":"https://chandra.harvard.edu/photo/2007/puppis",
      "id":"366",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/puppis/puppis_chandra.jpg",
          "id":"366_chandra",
          "layer":"chandra"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/puppis/puppis_epoch_1.jpg",
          "id":"366_1",
          "layer":"1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/puppis/puppis_epoch_2.jpg",
          "id":"366_2",
          "layer":"2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/puppis/puppis_comp.jpg",
          "id":"366_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/puppis/puppis_optical.jpg",
          "id":"366_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/puppis/puppis_xray.jpg",
          "id":"366_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/puppis/puppis_scale.jpg",
          "id":"366_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/ngc281/ngc281.jpg",
      "title":"NGC 281",
      "description":"NGC 281 is a bustling hub of star formation about 10,000 light years away.",
      "url":"https://chandra.harvard.edu/photo/2007/ngc281",
      "id":"367",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/ngc281/ngc281_xray.jpg",
          "id":"367_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/ngc281/ngc281_3cxray.jpg",
          "id":"367_3cxray",
          "layer":"3cxray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/ngc281/ngc281_optical.jpg",
          "id":"367_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/ngc281/ngc281_scale.jpg",
          "id":"367_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/goods/goods_multipanel.jpg",
      "title":"GOODS Chandra Deep Field-South",
      "description":"A compilation of long observations on the same patch of sky.",
      "url":"https://chandra.harvard.edu/photo/2007/goods",
      "id":"368",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/goods/goods_xray_1b.jpg",
          "id":"368_1b",
          "layer":"1b"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/goods/goods_xray_1c.jpg",
          "id":"368_1c",
          "layer":"1c"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/goods/goods_illustration.jpg",
          "id":"368_illustration",
          "layer":"illustration"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/goods/goods_ir_3a.jpg",
          "id":"368_3a",
          "layer":"3a"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/goods/goods_ir_3b.jpg",
          "id":"368_3b",
          "layer":"3b"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/g292/g292.jpg",
      "title":"G292.0+1.8",
      "description":"A young supernova remnant 20,000 light years from Earth, in the constellation Centaurus. ",
      "url":"https://chandra.harvard.edu/photo/2007/g292",
      "id":"369",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/g292/g292_xray.jpg",
          "id":"369_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/g292/g292_pwn.jpg",
          "id":"369_pwn",
          "layer":"pwn"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/g292/g292_pullout.jpg",
          "id":"369_pullout",
          "layer":"pullout"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/g292/g292_hardxray.jpg",
          "id":"369_hardxray",
          "layer":"hardxray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/g292/g292_dssonly.jpg",
          "id":"369_dssonly",
          "layer":"dssonly"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/g292/g292_scale.jpg",
          "id":"369_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/m33x7/m33x7.jpg",
      "title":"M33 X-7",
      "description":"A binary system in the galaxy M33 where a large companion star  is in orbit around a black hole.",
      "url":"https://chandra.harvard.edu/photo/2007/m33x7",
      "id":"370",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/m33x7/m33x7_xray_bright.jpg",
          "id":"370_bright",
          "layer":"bright"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m33x7/m33x7_xray_dim.jpg",
          "id":"370_dim",
          "layer":"dim"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m33x7/m33x7_chandta_hstfov.jpg",
          "id":"370_hstfov",
          "layer":"hstfov"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m33x7/m33x7_chandra_only_hstFoV.jpg",
          "id":"370_hstFoV",
          "layer":"hstFoV"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m33x7/m33x7_hst.jpg",
          "id":"370_hst",
          "layer":"hst"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m33x7/m33x7_gemini.jpg",
          "id":"370_gemini",
          "layer":"gemini"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m33x7/m33x7_noao.jpg",
          "id":"370_noao",
          "layer":"noao"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m33x7/m33x7_illlustration.jpg",
          "id":"370_illlustration",
          "layer":"illlustration"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m33x7/m33x7_scale.jpg",
          "id":"370_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/orion/orion.jpg",
      "title":"Orion Nebula",
      "description":"A rich cluster of young stars about 1,500 light years from Earth. ",
      "url":"https://chandra.harvard.edu/photo/2007/orion",
      "id":"371",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/orion/orion_xray.jpg",
          "id":"371_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/orion/orion_hst.jpg",
          "id":"371_hst",
          "layer":"hst"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/orion/orion_scale.jpg",
          "id":"371_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/ngc5315/ngc5315.jpg",
      "title":"NGC 5315",
      "description":"A planetary nebula about 7,000 light years from Earth in the constellation of Circinus.",
      "url":"https://chandra.harvard.edu/photo/2007/ngc5315",
      "id":"372",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/ngc5315/ngc5315_xray_more.jpg",
          "id":"372_more",
          "layer":"more"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/ngc5315/full_tif_more2.jpg",
          "id":"372_more2",
          "layer":"more2"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/a3627/a3627.jpg",
      "title":"Abell 3627",
      "description":"A giant cluster of galaxies about 220 million light years from Earth with galaxy ESO 137-001 plunging into it. ",
      "url":"https://chandra.harvard.edu/photo/2007/a3627",
      "id":"373",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/a3627/a3627_3xray.jpg",
          "id":"373_3xray",
          "layer":"3xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a3627/a3627_xray_halpha.jpg",
          "id":"373_halpha",
          "layer":"halpha"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a3627/a3627_halpha.jpg",
          "id":"373_halpha",
          "layer":"halpha"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a3627/a3627_halpha_regions.jpg",
          "id":"373_regions",
          "layer":"regions"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a3627/a3627_xmm.jpg",
          "id":"373_xmm",
          "layer":"xmm"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a3627/a3627_xmm_outline.jpg",
          "id":"373_outline",
          "layer":"outline"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a3627/a3627_continuum.jpg",
          "id":"373_continuum",
          "layer":"continuum"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a3627/a3627_scale.jpg",
          "id":"373_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/coronet/coronet.jpg",
      "title":"Coronet Cluster",
      "description":"A region of star formation about 420 light years from Earth. ",
      "url":"https://chandra.harvard.edu/photo/2007/coronet",
      "id":"374",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/coronet/coronet_3xray.jpg",
          "id":"374_3xray",
          "layer":"3xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/coronet/coronet_ir.jpg",
          "id":"374_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/coronet/coronet_scale.jpg",
          "id":"374_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/n19/n19.jpg",
      "title":"LHa115-N19",
      "description":"200,000 light years away, the Small Magellanic Cloud (SMC) is one of the Milky Way's closest galactic neighbors.",
      "url":"https://chandra.harvard.edu/photo/2007/n19",
      "id":"375",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/n19/n19_xray.jpg",
          "id":"375_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/n19/n19_scale.jpg",
          "id":"375_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/a520/a520.jpg",
      "title":"Abell 520",
      "description":"A system where at least two massive galaxy clusters have collided.",
      "url":"https://chandra.harvard.edu/photo/2007/a520",
      "id":"376",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/a520/a520_comp.jpg",
          "id":"376_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a520/a520_xray.jpg",
          "id":"376_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a520/a520_opt.jpg",
          "id":"376_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a520/a520_lens.jpg",
          "id":"376_lens",
          "layer":"lens"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a520/a520_ill.jpg",
          "id":"376_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a520/a520_bullet.jpg",
          "id":"376_bullet",
          "layer":"bullet"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a520/a520_bullet_2panel.jpg",
          "id":"376_2panel",
          "layer":"2panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/a520/a520_scale.jpg",
          "id":"376_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/2snr/2snr.jpg",
      "title":"G347.3-0.5",
      "description":"This stellar explosion may have been witnessed by ancient astronomers.",
      "url":"https://chandra.harvard.edu/photo/2007/2snr",
      "id":"377",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/2snr/rcw86_comp.jpg",
          "id":"377_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/2snr/rcw86.jpg",
          "id":"377_rcw86",
          "layer":"rcw86"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/2snr/g347.jpg",
          "id":"377_g347",
          "layer":"g347"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/2snr/g347_chandra.jpg",
          "id":"377_chandra",
          "layer":"chandra"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/2snr/g347_scale.jpg",
          "id":"377_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/2snr/2snr_scale.jpg",
          "id":"377_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/cl0958/cl0958.jpg",
      "title":"CL0958+4702",
      "description":"A four-way collision of galaxies about 5 billion light years away.",
      "url":"https://chandra.harvard.edu/photo/2007/cl0958",
      "id":"378",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/cl0958/mergerIllust.jpg",
          "id":"378_mergerIllust",
          "layer":"mergerIllust"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/cl0958/cl0958_scale.jpg",
          "id":"378_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/agns/agns.jpg",
      "title":"CL 0542-4100",
      "description":"Two clusters of galaxies about 5.7 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2007/agns",
      "id":"379",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/agns/accretiondisk_torus.jpg",
          "id":"379_torus",
          "layer":"torus"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/agns/cl0542.jpg",
          "id":"379_cl0542",
          "layer":"cl0542"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/agns/cl0542_circledA.jpg",
          "id":"379_circledA",
          "layer":"circledA"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/agns/cl0848.jpg",
          "id":"379_cl0848",
          "layer":"cl0848"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/agns/cl0848_circledB.jpg",
          "id":"379_circledB",
          "layer":"circledB"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/agns/cl0848_scale.jpg",
          "id":"379_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/agns/agns_scale.jpg",
          "id":"379_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/rcw103/rcw103.jpg",
      "title":"RCW 103",
      "description":"The aftermath of a cosmic explosion which occurred 10,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2007/rcw103",
      "id":"380",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/rcw103/rcw103_scale.jpg",
          "id":"380_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/cirx1/cirx1.jpg",
      "title":"Circinus X-1",
      "description":"A system where a neutron star is in orbit with a star several times the mass of the Sun.",
      "url":"https://chandra.harvard.edu/photo/2007/cirx1",
      "id":"381",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/cirx1//graphics/resources/illustrations/blackholes/0214_illustration_nolabel.jpg",
          "id":"381_nolabel",
          "layer":"nolabel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/cirx1/cirx1_xray.jpg",
          "id":"381_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/cirx1/cirx1_ill.jpg",
          "id":"381_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/cirx1/cirx1_scale.jpg",
          "id":"381_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/etacar/etacar.jpg",
      "title":"Eta Carinae",
      "description":"A star between 100 and 150 more massive than the Sun, about 7,500 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2007/etacar",
      "id":"382",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/etacar/etacar_xray.jpg",
          "id":"382_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/etacar/etacar_opt.jpg",
          "id":"382_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/etacar/etacar_opt_red.jpg",
          "id":"382_red",
          "layer":"red"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/etacar/etacar_scale.jpg",
          "id":"382_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/n132d/n132d_comp.jpg",
      "title":"N132D",
      "description":"A supernova located in the Large Magellanic Cloud about 160,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2007/n132d",
      "id":"383",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/3c438/3c438.jpg",
      "title":"3C438",
      "description":"Evidence for an awesome upheaval in a massive galaxy cluster was discovered in a Chandra image.",
      "url":"https://chandra.harvard.edu/photo/2007/3c438",
      "id":"384",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c438/3c438_xray.jpg",
          "id":"384_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c438/3c438_opt.jpg",
          "id":"384_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c438/3c438_dss_opt.jpg",
          "id":"384_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c438/3c438_radio.jpg",
          "id":"384_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c438/3c438_xray_radio.jpg",
          "id":"384_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c438/3c438_scale.jpg",
          "id":"384_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/m31/m31.jpg",
      "title":"Andromeda Galaxy",
      "description":"Also known as M31 and the nearest major galaxy to the Milky Way.",
      "url":"https://chandra.harvard.edu/photo/2007/m31",
      "id":"385",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/m31/m31_xray.jpg",
          "id":"385_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m31/m31_xray_opt.jpg",
          "id":"385_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m31/m31_opt.jpg",
          "id":"385_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/m31/m31_scale.jpg",
          "id":"385_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/sn2006gy/sn2006gy.jpg",
      "title":"SN 2006gy",
      "description":"A supernova in the galaxy NGC 1260, about 238 million light years away.",
      "url":"https://chandra.harvard.edu/photo/2007/sn2006gy",
      "id":"386",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/sn2006gy/sn2006gy_3panel.jpg",
          "id":"386_3panel",
          "layer":"3panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sn2006gy/sn2006gy_xray.jpg",
          "id":"386_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sn2006gy/sn2006gy_lick.jpg",
          "id":"386_lick",
          "layer":"lick"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sn2006gy/sn2006gy_xray_full.jpg",
          "id":"386_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sn2006gy/sn2006gy_art_concept.jpg",
          "id":"386_concept",
          "layer":"concept"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sn2006gy/sn2006gy_ill.jpg",
          "id":"386_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sn2006gy/sn2006gy_newline.jpg",
          "id":"386_newline",
          "layer":"newline"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sn2006gy/eta_opt_900.jpg",
          "id":"386_900",
          "layer":"900"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sn2006gy//photo/2007/sn87a/sn87a.jpg",
          "id":"386_/photo/2007/sn87a/sn87a",
          "layer":"/photo/2007/sn87a/sn87a"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sn2006gy/sn2006gy_light_curve.jpg",
          "id":"386_curve",
          "layer":"curve"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sn2006gy/sn2006gy_scale.jpg",
          "id":"386_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/sombrero/sombrero.jpg",
      "title":"Sombrero Galaxy",
      "description":"Sombrero (M104) is one of the largest galaxies in the nearby Virgo cluster, about 28 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2007/sombrero",
      "id":"387",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/sombrero/sombrero_comp.jpg",
          "id":"387_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sombrero/sombrero_xray.jpg",
          "id":"387_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sombrero/sombrero_opt.jpg",
          "id":"387_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sombrero/sombrero_ir.jpg",
          "id":"387_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/sombrero/sombrero_scale.jpg",
          "id":"387_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/ngc1365/ngc1365.jpg",
      "title":"NGC 1365",
      "description":"Observations of the galaxy NGC 1365 have captured an eclipse of the supermassive black hole at its center.",
      "url":"https://chandra.harvard.edu/photo/2007/ngc1365",
      "id":"388",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/ngc1365/ngc1365_xray.jpg",
          "id":"388_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/ngc1365/ngc1365_opt.jpg",
          "id":"388_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2007/ngc1365/bh_eclipse_ill.jpg",
          "id":"388_ill",
          "layer":"ill"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/ngc4258/ngc4258_comp.jpg",
      "title":"NGC 4258",
      "description":"A spiral galaxy about 25 million light years from Earth, also known as M106.",
      "url":"https://chandra.harvard.edu/photo/2007/ngc4258",
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          "src":"https://chandra.harvard.edu/photo/2007/ngc4258/ngc4258_radio.jpg",
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          "layer":"radio"
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          "src":"https://chandra.harvard.edu/photo/2007/ngc4258/ngc4258_ir.jpg",
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          "src":"https://chandra.harvard.edu/photo/2007/ngc4258/ngc4258_optical.jpg",
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          "layer":"optical"
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          "src":"https://chandra.harvard.edu/photo/2007/ngc4258/ngc4258_scale.jpg",
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/3c442a/3c442a.jpg",
      "title":"3C442A",
      "description":"Astronomers think that there are enormous black holes at the centers of most, if not all, galaxies.",
      "url":"https://chandra.harvard.edu/photo/2007/3c442a",
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      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/3c442a/3c442a_xray.jpg",
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    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/bootes/bootes.jpg",
      "title":"Bootes Field",
      "description":"This panorama is the largest contiguous field ever obtained by the Chandra X-ray Observatory.",
      "url":"https://chandra.harvard.edu/photo/2007/bootes",
      "id":"391",
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          "src":"https://chandra.harvard.edu/photo/2007/bootes/bootes_xray.jpg",
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          "src":"https://chandra.harvard.edu/photo/2007/bootes/bootes_xray_border.jpg",
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          "src":"https://chandra.harvard.edu/photo/2007/bootes/bootes_unobscured2.jpg",
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          "src":"https://chandra.harvard.edu/photo/2007/bootes/bootes_scale.jpg",
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/jupiter/jupiter.jpg",
      "title":"Jupiter",
      "description":"Chandra observations of the powerful X-ray auroras near the poles of Jupiter.",
      "url":"https://chandra.harvard.edu/photo/2007/jupiter",
      "id":"392",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/jupiter/jupiter_xray.jpg",
          "id":"392_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2007/jupiter/jupiter_opt.jpg",
          "id":"392_opt",
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        {
          "src":"https://chandra.harvard.edu/photo/2007/jupiter/jupiter_ill.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2007/jupiter/jupiter_scale.jpg",
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/sn87a/sn87a.jpg",
      "title":"Supernova 1987A",
      "description":"February 24, 2007 marks the 20th anniversary of the first observation of Supernova 1987A.",
      "url":"https://chandra.harvard.edu/photo/2007/sn87a",
      "id":"393",
      "layers":[
        
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    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/m16/m16.jpg",
      "title":"The Eagle Nebula (M16)",
      "description":"A new look at the famous ",
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      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/m16/m16_xray.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2007/m16/m16_opt.jpg",
          "id":"394_opt",
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        {
          "src":"https://chandra.harvard.edu/photo/2007/m16/m16_perspective.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2007/m16/m16_scale.jpg",
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2007/g11/g11.jpg",
      "title":"G11.2-0.3",
      "description":"The remains of a massive star that exploded.",
      "url":"https://chandra.harvard.edu/photo/2007/g11",
      "id":"395",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2007/g11/g11_xray_radio.jpg",
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          "src":"https://chandra.harvard.edu/photo/2007/g11/g11_radio.jpg",
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    {
      "src":"https://chandra.harvard.edu/photo/2007/gcle/gcle.jpg",
      "title":"Light Echo at Galactic Center",
      "description":"X-rays bounced off gas clouds near the Milky Way's supermassive black hole.",
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          "src":"https://chandra.harvard.edu/photo/2007/gcle/gcle_ill_1.jpg",
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        {
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          "layer":"4"
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        {
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          "layer":"5"
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        {
          "src":"https://chandra.harvard.edu/photo/2007/gcle/gcle_ill_6.jpg",
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        {
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        {
          "src":"https://chandra.harvard.edu/photo/2007/gcle/gcle_2002_scale.jpg",
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        {
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        {
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        {
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    {
      "src":"https://chandra.harvard.edu/photo/2007/kepler/kepler.jpg",
      "title":"Kepler's Supernova Remnant",
      "description":"A supernova remnant believed to be created when a star exploded over 400 years ago.",
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      "id":"397",
      "layers":[
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    {
      "src":"https://chandra.harvard.edu/photo/2007/deml238/deml238.jpg",
      "title":"DEM L238 and DEM L249",
      "description":"DEM L238 and DEM L249 are two supernova remnants in the Large Magellanic Cloud.",
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          "src":"https://chandra.harvard.edu/photo/2007/deml238/deml238_xray.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2007/deml238/deml238_4panel.jpg",
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    {
      "src":"https://chandra.harvard.edu/photo/2006/w3/w3.jpg",
      "title":"W3 Main",
      "description":"W3 is a region where many massive stars are forming in a string of stellar clusters.",
      "url":"https://chandra.harvard.edu/photo/2006/w3",
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      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2006/w3/w3_xray.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2006/w3/w3_opt.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2006/w3/milkyway_ill.jpg",
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    {
      "src":"https://chandra.harvard.edu/photo/2006/n49/n49.jpg",
      "title":"N49",
      "description":"This is a composite image of N49, the brightest supernova remnant in optical light in the Large Magellanic Cloud.",
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          "src":"https://chandra.harvard.edu/photo/2006/n49/n49_opt.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2006/n49/n49_ir.jpg",
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    {
      "src":"https://chandra.harvard.edu/photo/2006/casa/casa.jpg",
      "title":"Cassiopeia A",
      "description":"A supernova remnant believed to be the remains of a massive star that exploded over 300 years ago.",
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      "id":"401",
      "layers":[
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        {
          "src":"https://chandra.harvard.edu/photo/2006/casa/casa_opt.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2006/casa/casa_scale.jpg",
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      "src":"https://chandra.harvard.edu/photo/2006/ms0735/ms0735.jpg",
      "title":"MS 0735.6+7421",
      "description":"A galaxy cluster located about 2.6 billion light years away in the constellation of Camelopardus.",
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      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2006/ms0735/ms0735_opt.jpg",
          "id":"402_opt",
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          "layer":"scale"
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      "src":"https://chandra.harvard.edu/photo/2006/crab/crab.jpg",
      "title":"Crab Nebula",
      "description":"A supernova remnant and pulsar located 6000 light years from Earth in the constellation of Taurus.",
      "url":"https://chandra.harvard.edu/photo/2006/crab",
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      "layers":[
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        {
          "src":"https://chandra.harvard.edu/photo/2006/crab/crab_opt.jpg",
          "id":"403_opt",
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        {
          "src":"https://chandra.harvard.edu/photo/2006/crab//photo/2002/0052/0052_xray_widefield.jpg",
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        {
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        {
          "src":"https://chandra.harvard.edu/photo/2006/crab/crab_hubble.jpg",
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          "src":"https://chandra.harvard.edu/photo/2006/crab/crab_scale.jpg",
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    {
      "src":"https://chandra.harvard.edu/photo/2006/m87/m87.jpg",
      "title":"M87",
      "description":"An elliptical galaxy known in the Virgo cluster about 50 million light years away.",
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      "layers":[
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        {
          "src":"https://chandra.harvard.edu/photo/2006/m87/m87_opt.jpg",
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          "layer":"opt"
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        {
          "src":"https://chandra.harvard.edu/photo/2006/m87/m87_comp.jpg",
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          "layer":"comp"
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          "src":"https://chandra.harvard.edu/photo/2006/m87/m87_scale.jpg",
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          "layer":"scale"
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      "src":"https://chandra.harvard.edu/photo/2006/ngc3576/ngc3576.jpg",
      "title":"NGC 3576",
      "description":"A giant region of star formation about 9,000 light years from Earth.",
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          "src":"https://chandra.harvard.edu/photo/2006/ngc3576/ngc3576_ir_opt.jpg",
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          "src":"https://chandra.harvard.edu/photo/2006/ngc3576/ngc3576_xray.jpg",
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          "layer":"scale"
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      "src":"https://chandra.harvard.edu/photo/2006/rcw86/rcw86.jpg",
      "title":"RCW 86",
      "description":"A supernova remnant 8,200 light years away.",
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      "src":"https://chandra.harvard.edu/photo/2006/1e0657/1e0657.jpg",
      "title":"1E 0657-56",
      "description":"Site of a collision between two large galaxy clusters about 3.4 billion light years from Earth.",
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        {
          "src":"https://chandra.harvard.edu/photo/2006/1e0657/1e0657_ill_4panel.jpg",
          "id":"407_4panel",
          "layer":"4panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/1e0657/1e0657_scale.jpg",
          "id":"407_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/clusters/cl0016.jpg",
      "title":"CL 0016+1609",
      "description":"A galaxy cluster about 4.5 billion light years away.",
      "url":"https://chandra.harvard.edu/photo/2006/clusters",
      "id":"408",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/clusters/cl0016.jpg",
          "id":"408_cl0016",
          "layer":"cl0016"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/clusters/a665.jpg",
          "id":"408_a665",
          "layer":"a665"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/clusters/macs1149.jpg",
          "id":"408_macs1149",
          "layer":"macs1149"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/clusters/cl1226.jpg",
          "id":"408_cl1226",
          "layer":"cl1226"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/clusters/a1689.jpg",
          "id":"408_a1689",
          "layer":"a1689"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/clusters/a1914.jpg",
          "id":"408_a1914",
          "layer":"a1914"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/clusters/sz_illustration.jpg",
          "id":"408_illustration",
          "layer":"illustration"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/clusters/clusters_scale.jpg",
          "id":"408_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/gcenter/gcenter.jpg",
      "title":"Arches, Quintuplet, and GC Star Clusters",
      "description":"This Chandra X-ray image of the Galactic Center shows three massive star clusters near Sagittarius A*.",
      "url":"https://chandra.harvard.edu/photo/2006/gcenter",
      "id":"409",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/4snr/snr0519.jpg",
      "title":"SNR 0519-69.0",
      "description":"The remains of a supernova in the nearby Large Magellanic Cloud galaxy.",
      "url":"https://chandra.harvard.edu/photo/2006/4snr",
      "id":"410",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/4snr/snr0519.jpg",
          "id":"410_snr0519",
          "layer":"snr0519"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/4snr/snr0509.jpg",
          "id":"410_snr0509",
          "layer":"snr0509"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/4snr/snr0453.jpg",
          "id":"410_snr0453",
          "layer":"snr0453"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/4snr/snr0534.jpg",
          "id":"410_snr0534",
          "layer":"snr0534"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/4snr/4snr_scale.jpg",
          "id":"410_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/j1655/j1655.jpg",
      "title":"GRO J1655-40",
      "description":"A binary star system consisting of a black hole and a normal star, located about 11,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2006/j1655",
      "id":"411",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/j1655/j1655_ill_disk.jpg",
          "id":"411_disk",
          "layer":"disk"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/j1655/j1655_spectrum.jpg",
          "id":"411_spectrum",
          "layer":"spectrum"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/j1655/j1655_spectrum_wind.jpg",
          "id":"411_wind",
          "layer":"wind"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/j1655/j1655_ill_fields.jpg",
          "id":"411_fields",
          "layer":"fields"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/j1655/j1655_ill_agn.jpg",
          "id":"411_agn",
          "layer":"agn"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/j1655/j1655_ill_2panel.jpg",
          "id":"411_2panel",
          "layer":"2panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/j1655//photo/2004/rxj1242/saturn_rings.jpg",
          "id":"411_rings",
          "layer":"rings"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/j1655/j1655_anim1.jpg",
          "id":"411_anim1",
          "layer":"anim1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/j1655/j1655_anim2.jpg",
          "id":"411_anim2",
          "layer":"anim2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/j1655/j1655_anim3.jpg",
          "id":"411_anim3",
          "layer":"anim3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/j1655/j1655_anim4.jpg",
          "id":"411_anim4",
          "layer":"anim4"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/3c273/3c273.jpg",
      "title":"3C273",
      "description":"A quasar over 3 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2006/3c273",
      "id":"412",
      "layers":[
        
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/m31/m31.jpg",
      "title":"M31",
      "description":"This color-coded Chandra image shows the central region of the Andromeda Galaxy.",
      "url":"https://chandra.harvard.edu/photo/2006/m31",
      "id":"413",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/m31/m31_xray_ir.jpg",
          "id":"413_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/m31/m31_xray_opt_pullout.jpg",
          "id":"413_pullout",
          "layer":"pullout"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/m31/m31_xray_opt.jpg",
          "id":"413_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/m31/m31_scale.jpg",
          "id":"413_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/ic443/ic443.jpg",
      "title":"J0617 in IC 443",
      "description":"A neutron star located in a supernova remnant",
      "url":"https://chandra.harvard.edu/photo/2006/ic443",
      "id":"414",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/ic443/j0167_comp_xray.jpg",
          "id":"414_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/ic443/j0167_comp.jpg",
          "id":"414_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/ic443/j0167_comp_xray_radio.jpg",
          "id":"414_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/ic443/j0167_comp_radio.jpg",
          "id":"414_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/ic443/j0167_comp_opt.jpg",
          "id":"414_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/ic443/ic443_comp.jpg",
          "id":"414_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/ic443/ic443_comp_opt_xray.jpg",
          "id":"414_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/ic443/ic443_comp_xray.jpg",
          "id":"414_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/ic443/ic443_comp_opt.jpg",
          "id":"414_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/ic443/ic443_comp_radio.jpg",
          "id":"414_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/ic443/ic443_scale.jpg",
          "id":"414_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/pne/mz3.jpg",
      "title":"Mz 3",
      "description":"A planetary nebula about 3,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2006/pne",
      "id":"415",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/pne/mz3.jpg",
          "id":"415_mz3",
          "layer":"mz3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/pne/mz3_xray.jpg",
          "id":"415_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/pne/mz3_opt.jpg",
          "id":"415_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/pne/bd30.jpg",
          "id":"415_bd30",
          "layer":"bd30"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/pne/bd30_xray.jpg",
          "id":"415_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/pne/bd30_opt.jpg",
          "id":"415_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/pne/he3.jpg",
          "id":"415_he3",
          "layer":"he3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/pne/he3_xray.jpg",
          "id":"415_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/pne/he3_opt.jpg",
          "id":"415_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/pne/ngc7027.jpg",
          "id":"415_ngc7027",
          "layer":"ngc7027"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/pne/ngc7027_xray.jpg",
          "id":"415_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/pne/ngc7027_opt.jpg",
          "id":"415_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/pne/pne_scale.jpg",
          "id":"415_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/m82/m82_comp.jpg",
      "title":"M82",
      "description":"A galaxy 12 million light years from Earth that is undergoing a burst of star formation. ",
      "url":"https://chandra.harvard.edu/photo/2006/m82",
      "id":"416",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/m82/m82_xray_blue.jpg",
          "id":"416_blue",
          "layer":"blue"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/m82/m82_xray_comp.jpg",
          "id":"416_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/m82/m82_xray_fullfield.jpg",
          "id":"416_fullfield",
          "layer":"fullfield"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/m82/m82_xray_crop.jpg",
          "id":"416_crop",
          "layer":"crop"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/m82/m82_hubble_comp.jpg",
          "id":"416_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/m82/m82_spitzer_comp.jpg",
          "id":"416_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/m82/m82_comp_orientation.jpg",
          "id":"416_orientation",
          "layer":"orientation"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/m82/m82_scale.jpg",
          "id":"416_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhcen.jpg",
      "title":"NGC 4696",
      "description":"A large elliptical galaxy in the Centaurus Galaxy Cluster",
      "url":"https://chandra.harvard.edu/photo/2006/bhcen",
      "id":"417",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhcen_xray.jpg",
          "id":"417_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhcen_radio.jpg",
          "id":"417_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhcen_xray_radio.jpg",
          "id":"417_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhcen_opt.jpg",
          "id":"417_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhe_closeup.jpg",
          "id":"417_closeup",
          "layer":"closeup"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhe_fuel.jpg",
          "id":"417_fuel",
          "layer":"fuel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhe_cavities.jpg",
          "id":"417_cavities",
          "layer":"cavities"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhe_still1.jpg",
          "id":"417_still1",
          "layer":"still1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhe_still2.jpg",
          "id":"417_still2",
          "layer":"still2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhe_still3.jpg",
          "id":"417_still3",
          "layer":"still3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhe_still4.jpg",
          "id":"417_still4",
          "layer":"still4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhcen_galaxies.jpg",
          "id":"417_galaxies",
          "layer":"galaxies"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/bhcen/bhcen_scale.jpg",
          "id":"417_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/a400/a400.jpg",
      "title":"3C 75 in Abell 400",
      "description":"A galaxy cluster with a central galaxy, NGC 1128, that has produced a giant double radio source known as 3C 75.",
      "url":"https://chandra.harvard.edu/photo/2006/a400",
      "id":"418",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/a400/a400_comp.jpg",
          "id":"418_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/a400/a400_raw.jpg",
          "id":"418_raw",
          "layer":"raw"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/a400/a400_xray.jpg",
          "id":"418_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/a400/a400_opt.jpg",
          "id":"418_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/a400/a400_radio.jpg",
          "id":"418_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/a400/a400_scale.jpg",
          "id":"418_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/4c37/4c37.jpg",
      "title":"4C37.43",
      "description":"This illustration depicts a quasar in the center of a galaxy that has turned on and is expelling gas at high speeds.",
      "url":"https://chandra.harvard.edu/photo/2006/4c37",
      "id":"419",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/4c37/4c37_xray.jpg",
          "id":"419_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/4c37/4c37_ill.jpg",
          "id":"419_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/4c37/4c37_opt.jpg",
          "id":"419_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/4c37/4c37_scale.jpg",
          "id":"419_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/n2841/n2841.jpg",
      "title":"NGC 2841",
      "description":"This X-ray/optical composite image shows multimillion degree gas rising above the disk of stars and cooler gas.",
      "url":"https://chandra.harvard.edu/photo/2006/n2841",
      "id":"420",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/n2841/n2841_xray.jpg",
          "id":"420_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/n2841/n2841_opt.jpg",
          "id":"420_opt",
          "layer":"opt"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/puppisa/puppisa.jpg",
      "title":"Puppis A",
      "description":"A supernova remnant about 7,000 light years from Earth",
      "url":"https://chandra.harvard.edu/photo/2006/puppisa",
      "id":"421",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/puppisa/puppisa_sim.jpg",
          "id":"421_sim",
          "layer":"sim"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/puppisa/puppisa_xray.jpg",
          "id":"421_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/puppisa/puppisa_xray_wf.jpg",
          "id":"421_wf",
          "layer":"wf"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/puppisa/puppisa_scale.jpg",
          "id":"421_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/n5746/n5746.jpg",
      "title":"NGC 5746",
      "description":"A massive spiral galaxy about 100 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2006/n5746",
      "id":"422",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/n5746/n5746_sim.jpg",
          "id":"422_sim",
          "layer":"sim"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/n5746/n5746_xray.jpg",
          "id":"422_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/n5746/n5746_opt.jpg",
          "id":"422_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/n5746/n5746_scale.jpg",
          "id":"422_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/cartwheel/cartwheel.jpg",
      "title":"Cartwheel Galaxy",
      "description":"A ring galaxy 400 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2006/cartwheel",
      "id":"423",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/cartwheel/cartwheel_xray.jpg",
          "id":"423_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/cartwheel/cartwheel_uv.jpg",
          "id":"423_uv",
          "layer":"uv"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/cartwheel/cartwheel_ir.jpg",
          "id":"423_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/cartwheel/cartwheel_opt.jpg",
          "id":"423_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/cartwheel/cartwheel_5panel.jpg",
          "id":"423_5panel",
          "layer":"5panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/cartwheel/cartwheel_old.jpg",
          "id":"423_old",
          "layer":"old"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/cartwheel/cartwheel_scale.jpg",
          "id":"423_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2006/galaxies/n0507.jpg",
      "title":"NGC 0507",
      "description":"An elliptical galaxy 234 million light years away.",
      "url":"https://chandra.harvard.edu/photo/2006/galaxies",
      "id":"424",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2006/galaxies/n0507.jpg",
          "id":"424_n0507",
          "layer":"n0507"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/galaxies/n0507_opt.jpg",
          "id":"424_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/galaxies/n0533.jpg",
          "id":"424_n0533",
          "layer":"n0533"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2006/galaxies/n0533_opt.jpg",
          "id":"424_opt",
          "layer":"opt"
        },
        {
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        {
          "src":"https://chandra.harvard.edu/photo/2006/galaxies/n6482.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2006/galaxies/n7618.jpg",
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          "id":"424_scale",
          "layer":"scale"
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    {
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      "title":"Earth Aurora",
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    {
      "src":"https://chandra.harvard.edu/photo/2005/sn1006/sn1006.jpg",
      "title":"SN 1006",
      "description":"A supernova remnant about 7,000 light years from Earth.",
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      "id":"426",
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    {
      "src":"https://chandra.harvard.edu/photo/2005/perseus/perseus.jpg",
      "title":"Perseus Cluster",
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    {
      "src":"https://chandra.harvard.edu/photo/2005/sn70/sn70.jpg",
      "title":"SN 1970G",
      "description":"The Chandra inset shows SN 1970G, a supernova that was observed to occur in the galaxy M101 35 years ago.",
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      "title":"DEM L316",
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      "title":"Westerlund 1",
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      "title":"Sagittarius A*",
      "description":"Chandra's image of the Galactic Center has provided evidence for a new and unexpected way for stars to form.",
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      "src":"https://chandra.harvard.edu/photo/2005/grb050709/grb050709.jpg",
      "title":"GRB 050709",
      "description":"A gamma-ray burst located in a spiral galaxy 2 billion light years from Earth.",
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    {
      "src":"https://chandra.harvard.edu/photo/2005/n132d/n132d.jpg",
      "title":"N132D",
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      "src":"https://chandra.harvard.edu/photo/2005/tycho/tycho.jpg",
      "title":"Tycho's Supernova Remnant",
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      "src":"https://chandra.harvard.edu/photo/2005/trump/trump_xray.jpg",
      "title":"Trumpler 14",
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      "title":"Neon Abundance in Nearby Stars",
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      "title":"47 Tuc W",
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      "title":"Cassiopeia A",
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      "src":"https://chandra.harvard.edu/photo/2005/mira/mira_comp.jpg",
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    {
      "src":"https://chandra.harvard.edu/photo/2005/g21/g21_xray.jpg",
      "title":"G21.5-0.9",
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      "src":"https://chandra.harvard.edu/photo/2005/jupiter/jupiter_xray.jpg",
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      "title":"Lockman Hole",
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        {
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    {
      "src":"https://chandra.harvard.edu/photo/2004/j1306/j1306_xray.jpg",
      "title":"SDSSp J1306",
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          "layer":"scale"
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    {
      "src":"https://chandra.harvard.edu/photo/2004/proxima/proxima_xray.jpg",
      "title":"Proxima Centauri",
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    {
      "src":"https://chandra.harvard.edu/photo/2004/m87b/m87b_int.jpg",
      "title":"M87 Core",
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      "title":"NGC 4555",
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      "src":"https://chandra.harvard.edu/photo/2004/kepler/kepler_comp.jpg",
      "title":"Kepler's Supernova Remnant",
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          "layer":"scale"
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    {
      "src":"https://chandra.harvard.edu/photo/2004/mouse/mouse_xray_radio.jpg",
      "title":"Mouse",
      "description":"A pulsar wind nebula about 16,000 light years from Earth.",
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          "layer":"scale"
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      "src":"https://chandra.harvard.edu/photo/2004/fornax/fornax_xray.jpg",
      "title":"Fornax Cluster",
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      "src":"https://chandra.harvard.edu/photo/2004/casa/casa_xray.jpg",
      "title":"Cassiopeia A",
      "description":"The remnant of a supernova 10,000 light years from Earth.",
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          "src":"https://chandra.harvard.edu/photo/2004/casa/casa_broadband.jpg",
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    {
      "src":"https://chandra.harvard.edu/photo/2004/a2125/a2125_xray.jpg",
      "title":"Abell 2125",
      "description":"A massive galaxy cluster about 3 billion light years from Earth.",
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      "src":"https://chandra.harvard.edu/photo/2004/grb031203/grb031203_xray.jpg",
      "title":"GRB 031203",
      "description":"A gamma ray burst 1.3 billion light years from Earth.",
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      "src":"https://chandra.harvard.edu/photo/2004/quint/quint_xray.jpg",
      "title":"Quintuplet Cluster",
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      "src":"https://chandra.harvard.edu/photo/2004/mcneil/mcneil_xray_opt.jpg",
      "title":"McNeil's Nebula",
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          "src":"https://chandra.harvard.edu/photo/2004/mcneil/mcneil_opt.jpg",
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          "src":"https://chandra.harvard.edu/photo/2004/mcneil/mcneil_opt_zoom.jpg",
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          "src":"https://chandra.harvard.edu/photo/2004/mcneil/mcneil_xray_opt_contours.jpg",
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      "src":"https://chandra.harvard.edu/photo/2004/h1413/h1413_xray.jpg",
      "title":"Cloverleaf Quasar",
      "description":"A quasar about 11 billion light years from Earth.",
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      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2004/h1413/accretion_reddisk_diamond.jpg",
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          "src":"https://chandra.harvard.edu/photo/2004/h1413/h1413_ill.jpg",
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      "src":"https://chandra.harvard.edu/photo/2004/sgra/sgra_xray.jpg",
      "title":"Hot Gas in Galactic Center",
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          "src":"https://chandra.harvard.edu/photo/2004/sgra/sgra_xray_green.jpg",
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          "src":"https://chandra.harvard.edu/photo/2004/sgra/sgra_xray_blue.jpg",
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    {
      "src":"https://chandra.harvard.edu/photo/2004/w49b/w49b_xray.jpg",
      "title":"W49B",
      "description":"A barrel-shaped supernova remnant about 35,000 light years from Earth.",
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          "src":"https://chandra.harvard.edu/photo/2004/w49b/w49b_h2.jpg",
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          "src":"https://chandra.harvard.edu/photo/2004/w49b/w49b_3color.jpg",
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          "src":"https://chandra.harvard.edu/photo/2004/w49b/w49b_low.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2004/w49b/w49b_med.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2004/w49b/w49b_high.jpg",
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      "src":"https://chandra.harvard.edu/photo/2004/goodsbh/goodsbh_xray_opt.jpg",
      "title":"GOODS CDFS 033213.9-275000",
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      "src":"https://chandra.harvard.edu/photo/2004/saturn/saturn_xray_grid.jpg",
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      "src":"https://chandra.harvard.edu/photo/2004/m101/m101_xray.jpg",
      "title":"M101",
      "description":"A possible new class of X-ray sources.",
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      "src":"https://chandra.harvard.edu/photo/2004/v471/v471tau_spectrum.jpg",
      "title":"V471 Tauri",
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      "src":"https://chandra.harvard.edu/photo/2004/c153/c153_panel.jpg",
      "title":"C153",
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      "src":"https://chandra.harvard.edu/photo/2004/rdcs1252/rdcs1252_xray_opt.jpg",
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          "src":"https://chandra.harvard.edu/photo/2004/rdcs1252/rdcs1252_optical.jpg",
          "id":"487_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2004/rdcs1252/rdcs1252_hst_optical.jpg",
          "id":"487_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2004/rdcs1252/rdcs1252_xray_3color_crop.jpg",
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          "layer":"crop"
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        {
          "src":"https://chandra.harvard.edu/photo/2004/rdcs1252/rdcs1252_scale.jpg",
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          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/n63a/n63a_comp.jpg",
      "title":"N63A",
      "description":"Supernova remnant N63A, located in the nearby galaxy of the Large Magellanic Cloud.",
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          "src":"https://chandra.harvard.edu/photo/2003/n63a/n63a_xray.jpg",
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          "layer":"xray"
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          "src":"https://chandra.harvard.edu/photo/2003/n63a/n63a_3color.jpg",
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    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/ngc4261/ngc4261_comp.jpg",
      "title":"NGC 4261",
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    {
      "src":"https://chandra.harvard.edu/photo/2003/gb1508/gb1508_xray_illustration.jpg",
      "title":"GB1508+5714",
      "description":"The quasar GB1508+5714 reveals a jet of high-energy particles.",
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          "src":"https://chandra.harvard.edu/photo/2003/gb1508/gb1508_scale.jpg",
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          "layer":"scale"
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    {
      "src":"https://chandra.harvard.edu/photo/2003/ngc1637/4panel_sized.jpg",
      "title":"NGC 1637",
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          "src":"https://chandra.harvard.edu/photo/2003/ngc1637/ngc1637_xray_7.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc1637/ngc1637_optical.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc1637/ngc1637_xray_optical.jpg",
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          "layer":"optical"
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        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc1637/ngc1637_hstzoom.jpg",
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    {
      "src":"https://chandra.harvard.edu/photo/2003/ngc6888/ngc6888_comp.jpg",
      "title":"Crescent Nebula",
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        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc6888/ngc6888_optgr.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc6888/ngc6888_hst.jpg",
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          "src":"https://chandra.harvard.edu/photo/2003/ngc6888/ngc6888_scale.jpg",
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/m86/m86_xrayopt.jpg",
      "title":"M86",
      "description":"Image of M86 shows gas being swept out of the galaxy to form a long tail more than 200,000 light years in length.",
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          "src":"https://chandra.harvard.edu/photo/2003/m86/m86_xray.jpg",
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          "src":"https://chandra.harvard.edu/photo/2003/m86/m86_opt.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2003/m86/M86_scale.jpg",
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    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/bhspin/cygx1_spectrum.jpg",
      "title":"Cygnus X-1",
      "description":"Telltale X-rays from iron may reveal if black holes are spinning or not.",
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          "src":"https://chandra.harvard.edu/photo/2003/bhspin/cygx1_spectrum.jpg",
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        {
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          "src":"https://chandra.harvard.edu/photo/2003/bhspin/bhspin_illust_no_spin.jpg",
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        {
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          "src":"https://chandra.harvard.edu/photo/2003/bhspin/bhspin_spectra_spin.jpg",
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    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/moon/moon_noreg.jpg",
      "title":"The Moon",
      "description":"Observations of the bright portion of the Moon detected X-rays.",
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      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/moon/moon_illustration.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2003/moon/moon_rosat.jpg",
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/ngc4438/ngc4438_xray.jpg",
      "title":"NGC 4438 and NGC 4435",
      "description":"Two galaxies in the Virgo galaxy cluster that are more than 100,000 light years apart.",
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          "src":"https://chandra.harvard.edu/photo/2003/ngc4438/ngc4438_halpha.jpg",
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    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/perseus/perseus_xray_3color.jpg",
      "title":"Perseus Cluster",
      "description":"A 53-hour Chandra observation of the central region of the Perseus galaxy cluster.",
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      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/perseus/perseus_ripple.jpg",
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          "layer":"ripple"
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          "src":"https://chandra.harvard.edu/photo/2003/perseus/perseus_ripple_illustration_nolabel.jpg",
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          "src":"https://chandra.harvard.edu/photo/2003/perseus/perseus_ripple_illustration.jpg",
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          "src":"https://chandra.harvard.edu/photo/2003/perseus/perseus_xray_comp_sized.jpg",
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      "src":"https://chandra.harvard.edu/photo/2003/m17/m17_xray.jpg",
      "title":"M17",
      "description":"A young star cluster 5,000 light years from Earth in the constellation Sagittarius.",
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      "src":"https://chandra.harvard.edu/photo/2003/ngc6266/47tuc_xray.jpg",
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      "src":"https://chandra.harvard.edu/photo/2003/ngc1068/ngc1068_comp.jpg",
      "title":"NGC 1068",
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        }
      ]
    },
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      "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/vela_pulsar_xray.jpg",
      "title":"Vela Pulsar Jet",
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          "layer":"velazoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/frames/f4_velazoom.jpg",
          "id":"501_velazoom",
          "layer":"velazoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/frames/f5_velazoom.jpg",
          "id":"501_velazoom",
          "layer":"velazoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/frames/f6_velazoom.jpg",
          "id":"501_velazoom",
          "layer":"velazoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/frames/f7_velazoom.jpg",
          "id":"501_velazoom",
          "layer":"velazoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/frames/f8_velazoom.jpg",
          "id":"501_velazoom",
          "layer":"velazoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/frames/f9_velazoom.jpg",
          "id":"501_velazoom",
          "layer":"velazoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/frames/f10_velazoom.jpg",
          "id":"501_velazoom",
          "layer":"velazoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/frames/f11_velazoom.jpg",
          "id":"501_velazoom",
          "layer":"velazoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/frames/f12_velazoom.jpg",
          "id":"501_velazoom",
          "layer":"velazoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/frames/f13_velazoom.jpg",
          "id":"501_velazoom",
          "layer":"velazoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/vela_pulsar_opt1.jpg",
          "id":"501_opt1",
          "layer":"opt1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/vela_pulsar_opt2.jpg",
          "id":"501_opt2",
          "layer":"opt2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/vela_pulsar/Vela2003_scale.jpg",
          "id":"501_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/goods/cdfn_xray.jpg",
      "title":"GOODS Chandra Deep Field-North",
      "description":"The Chandra Deep Fields cover two separate regions in the North and South.",
      "url":"https://chandra.harvard.edu/photo/2003/goods",
      "id":"502",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/goods/cdfs_xray_box.jpg",
          "id":"502_box",
          "layer":"box"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/goods/cdfs_xray_nobox.jpg",
          "id":"502_nobox",
          "layer":"nobox"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/goods/cdfs_xray_closeup.jpg",
          "id":"502_closeup",
          "layer":"closeup"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/goods/cdfs_xray_fullfield.jpg",
          "id":"502_fullfield",
          "layer":"fullfield"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/goods/hdfn_fullfield.jpg",
          "id":"502_fullfield",
          "layer":"fullfield"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/goods/cosmic_timeline.jpg",
          "id":"502_timeline",
          "layer":"timeline"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/goods/CdfsGoods_scale.jpg",
          "id":"502_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/abell2029/abell2029_xray.jpg",
      "title":"Abell 2029",
      "description":"Galaxy cluster Abell 2029 is approximately one billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2003/abell2029",
      "id":"503",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/abell2029/abell2029_xray.jpg",
          "id":"503_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/abell2029/abell2029_dss.jpg",
          "id":"503_dss",
          "layer":"dss"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/abell2029/Abell2029_scale.jpg",
          "id":"503_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/snr0103/snr0103_comp.jpg",
      "title":"SNR 0103-72.6",
      "description":"A supernova remnant in the Small Magellanic Cloud, a galaxy about 190,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2003/snr0103",
      "id":"504",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/snr0103/Snr0103_scale.jpg",
          "id":"504_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/twhy/twhy_ill_spec.jpg",
      "title":"TW Hydrae",
      "description":"A young star system in the TW Hydrae Association about 180 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2003/twhy",
      "id":"505",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/twhy/twhy_ill_1.jpg",
          "id":"505_1",
          "layer":"1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/twhy/twhy_ill_2.jpg",
          "id":"505_2",
          "layer":"2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/twhy/twhy_spectra.jpg",
          "id":"505_spectra",
          "layer":"spectra"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/twhy/twhy_red.jpg",
          "id":"505_red",
          "layer":"red"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/twhy/twhy_micro1.jpg",
          "id":"505_micro1",
          "layer":"micro1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/twhy/twhy_micro2.jpg",
          "id":"505_micro2",
          "layer":"micro2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/twhy/twhy_micro3.jpg",
          "id":"505_micro3",
          "layer":"micro3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/twhy/twhy_micro4.jpg",
          "id":"505_micro4",
          "layer":"micro4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/twhy/twhy_micro5.jpg",
          "id":"505_micro5",
          "layer":"micro5"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/twhy/twhy_micro6.jpg",
          "id":"505_micro6",
          "layer":"micro6"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/twhy/Hd98800a_scale.jpg",
          "id":"505_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/4c41/4c41_comp.jpg",
      "title":"4C41.17",
      "description":"One of two massive galaxies that are enveloped by vast clouds of high-energy particles.",
      "url":"https://chandra.harvard.edu/photo/2003/4c41",
      "id":"506",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/4c41/3c294_more1.jpg",
          "id":"506_more1",
          "layer":"more1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/4c41/3c294_more1b.jpg",
          "id":"506_more1b",
          "layer":"more1b"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/4c41/3c294_more2.jpg",
          "id":"506_more2",
          "layer":"more2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/4c41/4c41_more3.jpg",
          "id":"506_more3",
          "layer":"more3"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/4c41/4c41_more3b.jpg",
          "id":"506_more3b",
          "layer":"more3b"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/4c41/4c41_more4.jpg",
          "id":"506_more4",
          "layer":"more4"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/4c41/4c41_more5.jpg",
          "id":"506_more5",
          "layer":"more5"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/4c41/4C41_scale.jpg",
          "id":"506_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/4c41/3C294Blue_scale.jpg",
          "id":"506_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/stephan/stephan_xray_opt.jpg",
      "title":"Stephan's Quintet",
      "description":"A compact group of galaxies about 280 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2003/stephan",
      "id":"507",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/stephan/stephan_xray_opt.jpg",
          "id":"507_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/stephan/stephan_xray.jpg",
          "id":"507_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/stephan/stephan_comp.jpg",
          "id":"507_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/stephan/stephan_opt.jpg",
          "id":"507_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/stephan/Stephans_scale.jpg",
          "id":"507_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/cenajet/cenajet.jpg",
      "title":"Centaurus A Jet",
      "description":"A powerful jet in an active galaxy located about 11 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2003/cenajet",
      "id":"508",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/cenajet/CenAJet_scale.jpg",
          "id":"508_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/twa5b/twa5b_xray.jpg",
      "title":"TWA 5B",
      "description":"A brown dwarf orbiting a young binary star.",
      "url":"https://chandra.harvard.edu/photo/2003/twa5b",
      "id":"509",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/twa5b/twa5b_dwarf_ill.jpg",
          "id":"509_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/twa5b/twa5b_red_opt.jpg",
          "id":"509_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/twa5b/twa5b_xray.jpg",
          "id":"509_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/twa5b/Twa5b_scale.jpg",
          "id":"509_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/apm08279/apm08279_xray.jpg",
      "title":"APM 08279+5255",
      "description":"High-speed winds blowing gas away from a supermassive black hole.",
      "url":"https://chandra.harvard.edu/photo/2003/apm08279",
      "id":"510",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/apm08279/apm08279_xray.jpg",
          "id":"510_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/apm08279/pg1115_xray.jpg",
          "id":"510_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/apm08279/accret_reddisk.jpg",
          "id":"510_reddisk",
          "layer":"reddisk"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/apm08279/apm08279_grav_lens.jpg",
          "id":"510_lens",
          "layer":"lens"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/apm08279/Apm08279_scale.jpg",
          "id":"510_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/grb020813/grb020813_comp_sized.jpg",
      "title":"GRB 020813",
      "description":"A Gamma-Ray Burst about 8,600,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2003/grb020813",
      "id":"511",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/grb020813/grb020813_color.jpg",
          "id":"511_color",
          "layer":"color"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/grb020813/grb020813_illustration.jpg",
          "id":"511_illustration",
          "layer":"illustration"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/deml71/deml71_xray.jpg",
      "title":"DEM L71",
      "description":"The remains of a supernova explosion that destroyed a white dwarf star.",
      "url":"https://chandra.harvard.edu/photo/2003/deml71",
      "id":"512",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/deml71//resources/illustrations/whitedwarfs.html",
          "id":"512_/resources/illustrations/whitedwarfs.html",
          "layer":"/resources/illustrations/whitedwarfs.html"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/deml71/deml71_xray.jpg",
          "id":"512_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/deml71/deml71_halpha.jpg",
          "id":"512_halpha",
          "layer":"halpha"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/deml71/deml71_xray_red.jpg",
          "id":"512_red",
          "layer":"red"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/deml71/deml71_xray_green.jpg",
          "id":"512_green",
          "layer":"green"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/deml71/deml71_xray_blue.jpg",
          "id":"512_blue",
          "layer":"blue"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/b1957/b1957_comp.jpg",
      "title":"B1957+20",
      "description":"A pulsar located about 5,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2003/b1957",
      "id":"513",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/b1957/b1957_ill1.jpg",
          "id":"513_ill1",
          "layer":"ill1"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/b1957/b1957_ill2.jpg",
          "id":"513_ill2",
          "layer":"ill2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/b1957/b1957_xray.jpg",
          "id":"513_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/b1957/b1957_opt.jpg",
          "id":"513_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/b1957/B1957_scale.jpg",
          "id":"513_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/ngc3079/ngc3079_comp.jpg",
      "title":"NGC 3079",
      "description":"A spiral galaxy about 55 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2003/ngc3079",
      "id":"514",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc3079/ngc3079_comp_core.jpg",
          "id":"514_core",
          "layer":"core"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc3079/ngc3079_comp_fullfield.jpg",
          "id":"514_fullfield",
          "layer":"fullfield"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc3079/ngc3079_full_xray.jpg",
          "id":"514_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc3079/ngc3079_full_opt.jpg",
          "id":"514_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc3079/ngc3079_core_xray.jpg",
          "id":"514_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc3079/ngc3079_core_opt.jpg",
          "id":"514_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc3079/Ngc3079_scale.jpg",
          "id":"514_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/ngc346/ngc346_xray.jpg",
      "title":"NGC 346",
      "description":"A hot gas cloud in a star cluster about 180,000 light years from Earth located in the Small Magellanic Cloud.",
      "url":"https://chandra.harvard.edu/photo/2003/ngc346",
      "id":"515",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc346/ngc346_central_xray.jpg",
          "id":"515_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc346/ngc346_full_xray.jpg",
          "id":"515_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc346/ngc346_dss_opt.jpg",
          "id":"515_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/ngc346/ngc346_2mass_infra.jpg",
          "id":"515_infra",
          "layer":"infra"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/1154/1154_xray_s2.jpg",
      "title":"M83",
      "description":"A spiral galaxy 12 million light years from Earth in the constellation Hydra.",
      "url":"https://chandra.harvard.edu/photo/2003/1154",
      "id":"516",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/1154/1154_inner.jpg",
          "id":"516_inner",
          "layer":"inner"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/1154/1154_vltB_chandra.jpg",
          "id":"516_chandra",
          "layer":"chandra"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/1154/1154_20cm.jpg",
          "id":"516_20cm",
          "layer":"20cm"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/1154/1154_wfpc_aligned.jpg",
          "id":"516_aligned",
          "layer":"aligned"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/1154/1154_wfpc_pc_aligned.jpg",
          "id":"516_aligned",
          "layer":"aligned"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2003/0203long/0203long_xray.jpg",
      "title":"Sagittarius A*",
      "description":"This image of Sgr A* was made from the longest X-ray exposure of that region to date.",
      "url":"https://chandra.harvard.edu/photo/2003/0203long",
      "id":"517",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2003/0203long/0203long_xray_jet.jpg",
          "id":"517_jet",
          "layer":"jet"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/0203long/0203long_xray_fullfield.jpg",
          "id":"517_fullfield",
          "layer":"fullfield"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2003/0203long/0203long_xray_scale.jpg",
          "id":"517_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/rcw38/rcw38_xray.jpg",
      "title":"RCW 38",
      "description":"This Chandra image revealed a diffuse cloud of X-rays enveloping the star cluster.",
      "url":"https://chandra.harvard.edu/photo/2002/rcw38",
      "id":"518",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/rcw38/rcw38_xray_radio_ir_comp.jpg",
          "id":"518_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/rcw38/rcw38_xray_broadband.jpg",
          "id":"518_broadband",
          "layer":"broadband"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/rcw38/rcw38_xray_high.jpg",
          "id":"518_high",
          "layer":"high"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/rcw38/rcw38_xray_medium.jpg",
          "id":"518_medium",
          "layer":"medium"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/rcw38/rcw38_xray_low.jpg",
          "id":"518_low",
          "layer":"low"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/rcw38/Rcw38_scale.jpg",
          "id":"518_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/n1700/n1700_xray.jpg",
      "title":"NGC 1700",
      "description":"NGC 1700 may be the result of a merger of two smaller galaxies.",
      "url":"https://chandra.harvard.edu/photo/2002/n1700",
      "id":"519",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/n1700/ngc1700_xray_lowenergy.jpg",
          "id":"519_lowenergy",
          "layer":"lowenergy"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/n1700/ngc1700_dss_xraycontour.jpg",
          "id":"519_xraycontour",
          "layer":"xraycontour"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/n1700/Ngc1700_scale.jpg",
          "id":"519_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0214/0214_xray.jpg",
      "title":"SS 433",
      "description":"This image shows two high speed lobes 5 trillion kilometers apart on opposite sides of a binary black hole system.",
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      "id":"520",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0214/0214_illustration.jpg",
          "id":"520_illustration",
          "layer":"illustration"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/0214/0214_xray.jpg",
          "id":"520_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0214/0214_xray_radio_comp.jpg",
          "id":"520_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0214/SS433_scale.jpg",
          "id":"520_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0192/0192_xray_inset.jpg",
      "title":"NGC 6240",
      "description":"An extremely luminous galaxy about 400 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2002/0192",
      "id":"521",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0192/0192_xray_opt_side.jpg",
          "id":"521_side",
          "layer":"side"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0192/0192_illustration.jpg",
          "id":"521_illustration",
          "layer":"illustration"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0192/0192_xray_spectrum.jpg",
          "id":"521_spectrum",
          "layer":"spectrum"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0192/0192_xray_wide.jpg",
          "id":"521_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0192/0192_xray.jpg",
          "id":"521_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0192/0192_xray_zoom.jpg",
          "id":"521_zoom",
          "layer":"zoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0192/0192_xray_medium.jpg",
          "id":"521_medium",
          "layer":"medium"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0192/0192_xray_low.jpg",
          "id":"521_low",
          "layer":"low"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0192/0192_xray_opt_comp.jpg",
          "id":"521_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0192/0192_xray_opt_highen_comp.jpg",
          "id":"521_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0192/0192_optical.jpg",
          "id":"521_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0192/0192_optical_wide.jpg",
          "id":"521_wide",
          "layer":"wide"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0192/Ngc6240_scale.jpg",
          "id":"521_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/mars/mars_xray.jpg",
      "title":"Mars",
      "description":"This remarkable image gave scientists their first look at X-rays from Mars.",
      "url":"https://chandra.harvard.edu/photo/2002/mars",
      "id":"522",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/mars/mars_illustration.jpg",
          "id":"522_illustration",
          "layer":"illustration"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/mars/mars_optical_june01.jpg",
          "id":"522_june01",
          "layer":"june01"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/mars/mars_optical_sept01.jpg",
          "id":"522_sept01",
          "layer":"sept01"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/mars/mars_xray_orange.jpg",
          "id":"522_orange",
          "layer":"orange"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/mars/mars_scale.jpg",
          "id":"522_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0021/0021_xray.jpg",
      "title":"NGC 720",
      "description":"An elliptical galaxy located about 80 million light years from Earth in the Constellation Cetus.",
      "url":"https://chandra.harvard.edu/photo/2002/0021",
      "id":"523",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0021/0021_xray.jpg",
          "id":"523_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0021/0021_dssopt.jpg",
          "id":"523_dssopt",
          "layer":"dssopt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0021/0021_ir.jpg",
          "id":"523_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0021/0021_rosat.jpg",
          "id":"523_rosat",
          "layer":"rosat"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0021/Ngc720_scale.jpg",
          "id":"523_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/xtej1550/xtej1550_xray.jpg",
      "title":"XTE J1550-564",
      "description":"A binary star system of a black hole and a normal star located in the Milky Way about 17,000 light years away.",
      "url":"https://chandra.harvard.edu/photo/2002/xtej1550",
      "id":"524",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/xtej1550/xtej1550_xray.jpg",
          "id":"524_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/xtej1550/xtej1550_radio00.jpg",
          "id":"524_radio00",
          "layer":"radio00"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/xtej1550/xtej1550_radio02.jpg",
          "id":"524_radio02",
          "layer":"radio02"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/xtej1550/xtej1550_illustration.jpg",
          "id":"524_illustration",
          "layer":"illustration"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/xtej1550/pks1127.jpg",
          "id":"524_pks1127",
          "layer":"pks1127"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/xtej1550/xtej1550_xray_june00.jpg",
          "id":"524_june00",
          "layer":"june00"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/xtej1550/xtej1550_xray_aug00.jpg",
          "id":"524_aug00",
          "layer":"aug00"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/xtej1550/xtej1550_xray_sept00.jpg",
          "id":"524_sept00",
          "layer":"sept00"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/xtej1550/xtej1550_xray_mar02.jpg",
          "id":"524_mar02",
          "layer":"mar02"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/xtej1550/xtej1550_xray_june02.jpg",
          "id":"524_june02",
          "layer":"june02"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/xtej1550/xtej1550_xray_scale.jpg",
          "id":"524_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0052/0052_xray.jpg",
      "title":"Crab Nebula",
      "description":"The remnant of a supernova located 6,000 light years from Earth in the constellation Taurus.",
      "url":"https://chandra.harvard.edu/photo/2002/0052",
      "id":"525",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0052/0052_xray_opt.jpg",
          "id":"525_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0052/0052_xray_widefield.jpg",
          "id":"525_widefield",
          "layer":"widefield"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0052/0052_xray_opt_radio.jpg",
          "id":"525_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0052/0052_xray_opt_6panel2.jpg",
          "id":"525_6panel2",
          "layer":"6panel2"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0052/0052_xray_opt_6panel.jpg",
          "id":"525_6panel",
          "layer":"6panel"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0052/CrabMovie_scale.jpg",
          "id":"525_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/1182/1182_xray.jpg",
      "title":"Abell 2104",
      "description":"A galaxy cluster in the constellation Serpens.",
      "url":"https://chandra.harvard.edu/photo/2002/1182",
      "id":"526",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/1182/1182_xray_opt.jpg",
          "id":"526_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1182/1182_xray_numbered.jpg",
          "id":"526_numbered",
          "layer":"numbered"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1182/1182_xray_scale.jpg",
          "id":"526_scale",
          "layer":"scale"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1182/1182_opt.jpg",
          "id":"526_opt",
          "layer":"opt"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0005/0005_xray.jpg",
      "title":"Tycho's Supernova Remnant",
      "description":"The remains of a supernova about 7,500 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2002/0005",
      "id":"527",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0005/0005_xray_scale.jpg",
          "id":"527_scale",
          "layer":"scale"
        },
        {
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          "id":"527_/graphics/resources/illustrations/presentTycho-72.gif",
          "layer":"/graphics/resources/illustrations/presentTycho-72.gif"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0237/0237_xray.jpg",
      "title":"Cassiopeia A",
      "description":"320 year old remnant of a massive star that exploded in the constellation Cassiopeia.",
      "url":"https://chandra.harvard.edu/photo/2002/0237",
      "id":"528",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0237/0237_xray_red.jpg",
          "id":"528_red",
          "layer":"red"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0237/0237_xray_green.jpg",
          "id":"528_green",
          "layer":"green"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0237/0237_xray_blue.jpg",
          "id":"528_blue",
          "layer":"blue"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0237/0237_opt.jpg",
          "id":"528_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0237/0237_xray_scale.jpg",
          "id":"528_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0157/0157_xray_opt_radio.jpg",
      "title":"Centaurus A Arcs",
      "description":"An active galaxy located about 11 million light years from Earth in the constellation Centaurus.",
      "url":"https://chandra.harvard.edu/photo/2002/0157",
      "id":"529",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0157/0157_xray.jpg",
          "id":"529_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0157/0157_xray_opt_radio.jpg",
          "id":"529_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0157/0157_optical.jpg",
          "id":"529_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0157/0157_xray_opt.jpg",
          "id":"529_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0157/0157_radio_continuum.jpg",
          "id":"529_continuum",
          "layer":"continuum"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0157/0157_radio_line.jpg",
          "id":"529_line",
          "layer":"line"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0157/0157_xray_hrc.jpg",
          "id":"529_hrc",
          "layer":"hrc"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0157/0157_spectrum.jpg",
          "id":"529_spectrum",
          "layer":"spectrum"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0157/0157_noao_med.jpg",
          "id":"529_med",
          "layer":"med"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0157/0157_xray_scale.jpg",
          "id":"529_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/igm/igm_illustration_spec.jpg",
      "title":"Hot Intergalactic Gas",
      "description":"This artist's conception depicts a huge cloud of hot gas 800 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2002/igm",
      "id":"530",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/igm/igm_xray_opt_contour.jpg",
          "id":"530_contour",
          "layer":"contour"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/igm/igm_illustration.jpg",
          "id":"530_illustration",
          "layer":"illustration"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/igm/igm_spectrum.jpg",
          "id":"530_spectrum",
          "layer":"spectrum"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/igm/igm_xray.jpg",
          "id":"530_xray",
          "layer":"xray"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/1060/1060_xray.jpg",
      "title":"NGC 1569",
      "description":"A dwarf galaxy approximately 7 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2002/1060",
      "id":"531",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/1060/1060_xray_soft.jpg",
          "id":"531_soft",
          "layer":"soft"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1060/1060_xray_medium.jpg",
          "id":"531_medium",
          "layer":"medium"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1060/1060_xray_high.jpg",
          "id":"531_high",
          "layer":"high"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1060/1060_xray_halpha.jpg",
          "id":"531_halpha",
          "layer":"halpha"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1060/1060_halpha.jpg",
          "id":"531_halpha",
          "layer":"halpha"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1060/1060_optical.jpg",
          "id":"531_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1060/1060_illustration.jpg",
          "id":"531_illustration",
          "layer":"illustration"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1060/1060_xray_broadband.jpg",
          "id":"531_broadband",
          "layer":"broadband"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1060/1060_xray_3color.jpg",
          "id":"531_3color",
          "layer":"3color"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1060/1060_xray_scale.jpg",
          "id":"531_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0158/0158_xray.jpg",
      "title":"Whirlpool Galaxy",
      "description":"A pair of galaxies about 30 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2002/0158",
      "id":"532",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0158/0158_xray.jpg",
          "id":"532_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0158/0158_xray_center.jpg",
          "id":"532_center",
          "layer":"center"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0158/0158_hst.jpg",
          "id":"532_hst",
          "layer":"hst"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0158/0158_optical.jpg",
          "id":"532_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0158/0158_ir.jpg",
          "id":"532_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0158/0158_radio.jpg",
          "id":"532_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0158/0158_xray_scale.jpg",
          "id":"532_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/g541/g541_xray.jpg",
      "title":"G54.1+0.3",
      "description":"A distant supernova remnant with a bright ring of high-energy particles and a central point-like source.",
      "url":"https://chandra.harvard.edu/photo/2002/g541",
      "id":"533",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/g541/g541_xray.jpg",
          "id":"533_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/g541/g541_radio.jpg",
          "id":"533_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/g541/G54_scale.jpg",
          "id":"533_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/1132/1132_illustration.jpg",
      "title":"1E 1207.4-5209",
      "description":"This artist's conception depicts a neutron star located about 7,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2002/1132",
      "id":"534",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/1132/1132_illustration.jpg",
          "id":"534_illustration",
          "layer":"illustration"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1132/1132_spectrum.jpg",
          "id":"534_spectrum",
          "layer":"spectrum"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1132/1132_flux.jpg",
          "id":"534_flux",
          "layer":"flux"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/1139/1139_xray.jpg",
      "title":"NGC 4649",
      "description":"The elliptical galaxy NGC 4649 reveals diffuse hot gas dotted with many point-like sources.",
      "url":"https://chandra.harvard.edu/photo/2002/1139",
      "id":"535",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/1139/1139_optical.jpg",
          "id":"535_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1139/Ngc4649_scale.jpg",
          "id":"535_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/1058/1058_xray.jpg",
      "title":"NGC 1553",
      "description":"The elliptical galaxy NGC 1553 reveals diffuse hot gas dotted with many point-like sources.",
      "url":"https://chandra.harvard.edu/photo/2002/1058",
      "id":"536",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/1058/1058_optical.jpg",
          "id":"536_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1058/Ngc1553_scale.jpg",
          "id":"536_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/1140/1140_xray.jpg",
      "title":"NGC 4697",
      "description":"The elliptical galaxy NGC 4697 reveals diffuse hot gas dotted with many point-like sources.",
      "url":"https://chandra.harvard.edu/photo/2002/1140",
      "id":"537",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/1140/1140_optical.jpg",
          "id":"537_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1140/Ngc4697_scale.jpg",
          "id":"537_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0050/0050_xray.jpg",
      "title":"N132D",
      "description":"A supernova remnant located in the Large Magellanic Cloud about 160,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2002/0050",
      "id":"538",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0050/N132dColor_scale.jpg",
          "id":"538_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/arp270/arp270_xray.jpg",
      "title":"Arp 270",
      "description":"Arp 270 shows two galaxies about 90 million light years from Earth in the early stage of a merger.",
      "url":"https://chandra.harvard.edu/photo/2002/arp270",
      "id":"539",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/arp270/arp270_optical.jpg",
          "id":"539_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/arp270/Arp270_scale.jpg",
          "id":"539_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0057/0057_xray.jpg",
      "title":"Tarantula Nebula",
      "description":"Tarantula Nebula gives scientists a close-up view of the drama of star formation and evolution.",
      "url":"https://chandra.harvard.edu/photo/2002/0057",
      "id":"540",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0057/0057_opt_dss.jpg",
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          "src":"https://chandra.harvard.edu/photo/2002/0057/0057_ir_mass.jpg",
          "id":"540_mass",
          "layer":"mass"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/0057/0057_uv.jpg",
          "id":"540_uv",
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        {
          "src":"https://chandra.harvard.edu/photo/2002/0057/0057_optical_jmaiz.jpg",
          "id":"540_jmaiz",
          "layer":"jmaiz"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/0057/30Doradus_scale.jpg",
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/1181/1181_xray.jpg",
      "title":"Arp 220",
      "description":"Arp 220 gives new insight into what happens when two galaxies the size of the Milky Way collide.",
      "url":"https://chandra.harvard.edu/photo/2002/1181",
      "id":"541",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/1181/Arp220_scale.jpg",
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0211/0211_xray.jpg",
      "title":"RX J1856.5-3754",
      "description":"A compact star about 400 light years from Earth in the constellation Corona Australis.",
      "url":"https://chandra.harvard.edu/photo/2002/0211",
      "id":"542",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0211/0211_optical.jpg",
          "id":"542_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0211/0211_diameter_ill.jpg",
          "id":"542_ill",
          "layer":"ill"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0211/0211_illustration.jpg",
          "id":"542_illustration",
          "layer":"illustration"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0211/0211_grandcanyon.jpg",
          "id":"542_grandcanyon",
          "layer":"grandcanyon"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0211/3c58_xray_crop.jpg",
          "id":"542_crop",
          "layer":"crop"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0211/3C58Pullout_scale.jpg",
          "id":"542_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0150/0150_xray.jpg",
      "title":"Coma Cluster",
      "description":"A cluster of galaxies about 500 million light years from Earth in the constellation Coma Berenices.",
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      "id":"543",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0150/0150_xray_bw.jpg",
          "id":"543_bw",
          "layer":"bw"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/0150/0150_xray_raw.jpg",
          "id":"543_raw",
          "layer":"raw"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0150/0150_optical.jpg",
          "id":"543_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0150/0150_ir.jpg",
          "id":"543_ir",
          "layer":"ir"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0150/0150_radio.jpg",
          "id":"543_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0150/0150_xray_rosat.jpg",
          "id":"543_rosat",
          "layer":"rosat"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/0150/ComaCluster_scale.jpg",
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/highzqso/highzqso_xray_sdss0836.jpg",
      "title":"SDSS 0836+0054",
      "description":"A quasar 13 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2002/highzqso",
      "id":"544",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2002/highzqso/highzqso_xray_sdss0836.jpg",
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          "layer":"sdss1030"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/highzqso/highzqso_xray_sdss1306.jpg",
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          "layer":"sdss1306"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/highzqso/highzqso_optical.jpg",
          "id":"544_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/highzqso/HighZQso_scale.jpg",
          "id":"544_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/1273/1273_xray.jpg",
      "title":"Quasar Pair Q2345+007 A, B",
      "description":"A closely aligned pair of quasars about 11 billion light years from Earth in the constellation Pisces.",
      "url":"https://chandra.harvard.edu/photo/2002/1273",
      "id":"545",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/1273/1273_xray_opt_comp.jpg",
          "id":"545_comp",
          "layer":"comp"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/1273/1273_xray_fullfield.jpg",
          "id":"545_fullfield",
          "layer":"fullfield"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1273/1273_xray_raw.jpg",
          "id":"545_raw",
          "layer":"raw"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/1273/1273_optical.jpg",
          "id":"545_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1273/Q2345AB_scale.jpg",
          "id":"545_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0001/0001_xray.jpg",
      "title":"Jupiter",
      "description":"The fifth planet away from the Sun, it is the largest planet in our solar system.",
      "url":"https://chandra.harvard.edu/photo/2002/0001",
      "id":"546",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0001/0001_xray_opt_uv.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2002/0001/0001_xray_opt_uv_zoom.jpg",
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        {
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        {
          "src":"https://chandra.harvard.edu/photo/2002/0001/0001_xray_blue.jpg",
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        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0001/0001_xray_rosat.jpg",
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          "layer":"rosat"
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0066/0066_xray.jpg",
      "title":"1E 0657-56",
      "description":"An extremely hot galaxy cluster about 4 billion light years from Earth.",
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      "id":"547",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/0066/0066_optical.jpg",
          "id":"547_optical",
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        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0066/0066_xray_opt_cont.jpg",
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          "layer":"cont"
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          "src":"https://chandra.harvard.edu/photo/2002/0066/1E0657_scale.jpg",
          "id":"547_scale",
          "layer":"scale"
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    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/1127/1127_xray.jpg",
      "title":"PKS 1127-145",
      "description":"A quasar about 10 billion light years from Earth located in the constellation Crater.",
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      "id":"548",
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          "src":"https://chandra.harvard.edu/photo/2002/1127/1127_illustration.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2002/1127/1127_optical.jpg",
          "id":"548_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1127/1127_xray_opt_overlay.jpg",
          "id":"548_overlay",
          "layer":"overlay"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1127/1127_xray_opt_side.jpg",
          "id":"548_side",
          "layer":"side"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/1127/1127_xray_radio_contour.jpg",
          "id":"548_contour",
          "layer":"contour"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/1127/1127_radio.jpg",
          "id":"548_radio",
          "layer":"radio"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/1127/Pks1127_scale.jpg",
          "id":"548_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/0146/0146_xray.jpg",
      "title":"Centaurus Cluster",
      "description":"A cluster of galaxies about 170 million light years from Earth, located in the constellation Centaurus.",
      "url":"https://chandra.harvard.edu/photo/2002/0146",
      "id":"549",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2002/0146/0146_xray_orange.jpg",
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          "layer":"orange"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/0146/0146_xray_raw.jpg",
          "id":"549_raw",
          "layer":"raw"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0146/0146_xray_rgb.jpg",
          "id":"549_rgb",
          "layer":"rgb"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/0146/CenCluster_scale.jpg",
          "id":"549_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/gcenter/gcenter_xray_rgb.jpg",
      "title":"Galactic Center",
      "description":"A 400 by 900 light-year mosaic of images located about 25,000 light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2002/gcenter",
      "id":"550",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/gcenter/gcenter_xray_blue.jpg",
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          "layer":"blue"
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          "src":"https://chandra.harvard.edu/photo/2002/gcenter/gcenter_xray.jpg",
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          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/gcenter/gcenter_xray_ir_r.jpg",
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          "layer":"r"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2002/gcenter/gcenter_xray_ir_r_close.jpg",
          "id":"550_close",
          "layer":"close"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/gcenter/gcenter_radio.jpg",
          "id":"550_radio",
          "layer":"radio"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/gcenter/gcenter_ir.jpg",
          "id":"550_ir",
          "layer":"ir"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/gcenter/gcenter_keyslabeled.jpg",
          "id":"550_keyslabeled",
          "layer":"keyslabeled"
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        {
          "src":"https://chandra.harvard.edu/photo/2002/gcenter/GCtrSurvey_scale.jpg",
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/gradioarc/gradioarc_xray_r_comp.jpg",
      "title":"Galactic Center Radio Arc",
      "description":"Observations of a region of the Galactic Center found an X-ray filament and cloud.",
      "url":"https://chandra.harvard.edu/photo/2002/gradioarc",
      "id":"551",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2002/gradioarc/gradioarc_xray.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2002/gradioarc/gradioarc_radio.jpg",
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        {
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        {
          "src":"https://chandra.harvard.edu/photo/2002/gradioarc/gradioarc_xray_r_side.jpg",
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          "src":"https://chandra.harvard.edu/photo/2002/gradioarc/GRadioArc_scale.jpg",
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2002/1269/1269_xray.jpg",
      "title":"Abell 2597",
      "description":"A cluster of galaxies about a billion light years from Earth, located in the constellation Aquarius.",
      "url":"https://chandra.harvard.edu/photo/2002/1269",
      "id":"552",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2002/1269/1269_xray_cool.jpg",
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          "src":"https://chandra.harvard.edu/photo/2002/1269/A2597_scale.jpg",
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/0144/0144_xray.jpg",
      "title":"NGC 4636",
      "description":"Chandra's image of the elliptical NGC 4636 shows spectacular symmetric arms, or arcs, of hot gas.",
      "url":"https://chandra.harvard.edu/photo/2001/0144",
      "id":"553",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2001/0144/0144_xray_bgsub.jpg",
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          "src":"https://chandra.harvard.edu/photo/2001/0144/0144_xray_rawblue.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2001/0144/0144_opt.jpg",
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          "src":"https://chandra.harvard.edu/photo/2001/0144/0144_xray_opt_comp.jpg",
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          "src":"https://chandra.harvard.edu/photo/2001/0144/Ngc4636_scale.jpg",
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/venus/venus_xray.jpg",
      "title":"Venus",
      "description":"First X-ray image of Venus shows a half crescent due to the relative orientation of the Sun, Earth and Venus.",
      "url":"https://chandra.harvard.edu/photo/2001/venus",
      "id":"554",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2001/venus/venus_xray_text.jpg",
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          "src":"https://chandra.harvard.edu/photo/2001/venus/venus_xray_opt_comp.jpg",
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          "src":"https://chandra.harvard.edu/photo/2001/venus/venus_xray_smooth.jpg",
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          "src":"https://chandra.harvard.edu/photo/2001/venus/venus_opt.jpg",
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/0176/0176_illustration.jpg",
      "title":"44i Bootis",
      "description":"This artist's conception depicts the two closely orbiting stars of 44i Bootis.",
      "url":"https://chandra.harvard.edu/photo/2001/0176",
      "id":"555",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2001/0176/0176_illustration.jpg",
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          "src":"https://chandra.harvard.edu/photo/2001/0176/0176_spectra1.jpg",
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          "src":"https://chandra.harvard.edu/photo/2001/0176/0176_spectra2.jpg",
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      ]
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    {
      "src":"https://chandra.harvard.edu/photo/2001/0112/0112_xray.jpg",
      "title":"G292.0+1.8",
      "description":"A young, oxygen-rich supernova remnant with a pulsar at its center surrounded by outflowing material.",
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      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2001/0112/0112_hard.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2001/0112/0112_crop.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2001/0112/0112_comp.jpg",
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          "src":"https://chandra.harvard.edu/photo/2001/0112/G292_scale.jpg",
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/hh2/hh2_comp.jpg",
      "title":"HH2",
      "description":"A type of celestial object that has long stumped astronomers has been found to emit X-rays.",
      "url":"https://chandra.harvard.edu/photo/2001/hh2",
      "id":"557",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2001/hh2/hh2_optical.jpg",
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          "src":"https://chandra.harvard.edu/photo/2001/hh2/hh2_hst.jpg",
          "id":"557_hst",
          "layer":"hst"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/hh2/HH2_scale.jpg",
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/0007rev/0007rev.jpg",
      "title":"M31",
      "description":"Chandra and Hubble Space Telescope images of two recently detected emitting globular star clusters.",
      "url":"https://chandra.harvard.edu/photo/2001/0007rev",
      "id":"558",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2001/0007rev/M31Rev_scale.jpg",
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/0134/0134_xray.jpg",
      "title":"M87 Jet",
      "description":"A giant elliptical galaxy 50 million light years away in the constellation Virgo.",
      "url":"https://chandra.harvard.edu/photo/2001/0134",
      "id":"559",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2001/0134/0134_hst.jpg",
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          "layer":"hst"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/0134/0134_radio.jpg",
          "id":"559_radio",
          "layer":"radio"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/0134/0134_gemini.jpg",
          "id":"559_gemini",
          "layer":"gemini"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/0134/0134_3band.jpg",
          "id":"559_3band",
          "layer":"3band"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/0134/m87comp_nolabels.jpg",
          "id":"559_nolabels",
          "layer":"nolabels"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/0134/M87_scale.jpg",
          "id":"559_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/0022/0022_xray.jpg",
      "title":"3C58",
      "description":"The remnant of a supernova in the constellation Cassiopeia.",
      "url":"https://chandra.harvard.edu/photo/2001/0022",
      "id":"560",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/0022/0022_xray_adapt.jpg",
          "id":"560_adapt",
          "layer":"adapt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/0022/3C58_scale.jpg",
          "id":"560_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/1175/1175_xray.jpg",
      "title":"B1509-58 in SNR G320.4-1.2",
      "description":"A neutron star located about 19,000 light years away in the constellation Circinus.",
      "url":"https://chandra.harvard.edu/photo/2001/1175",
      "id":"561",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/1175/1175_comp_full.jpg",
          "id":"561_full",
          "layer":"full"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/1175/1175_red.jpg",
          "id":"561_red",
          "layer":"red"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/1175/1175_blue.jpg",
          "id":"561_blue",
          "layer":"blue"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/1175/1175_purple.jpg",
          "id":"561_purple",
          "layer":"purple"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/1175/1175_green.jpg",
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        {
          "src":"https://chandra.harvard.edu/photo/2001/1175/B1509_scale.jpg",
          "id":"561_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/v1494aql/aquilae_illustration_bl.jpg",
      "title":"Nova Aquilae",
      "description":"This illustration depicts a nova binary system just before an explosion on the surface of the white dwarf.",
      "url":"https://chandra.harvard.edu/photo/2001/v1494aql",
      "id":"562",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/v1494aql/aquilae_spectrum.jpg",
          "id":"562_spectrum",
          "layer":"spectrum"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/v1494aql/aquilae_illustration.jpg",
          "id":"562_illustration",
          "layer":"illustration"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/clusters/a2390_xray.jpg",
      "title":"Abell 2390",
      "description":"A galaxy cluster located 2.5 billion light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2001/clusters",
      "id":"563",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/clusters/a2390_xray.jpg",
          "id":"563_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/clusters/ms2137_xray.jpg",
          "id":"563_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/clusters/a2390_opt.jpg",
          "id":"563_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/clusters/ms2137_opt.jpg",
          "id":"563_opt",
          "layer":"opt"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/clusters/A2390_Ms2137_scale.jpg",
          "id":"563_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/0164/0164_xray.jpg",
      "title":"EMSS 1358+6245",
      "description":"A cluster of galaxies 4 billion light years distant in the constellation Draco.",
      "url":"https://chandra.harvard.edu/photo/2001/0164",
      "id":"564",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/0164/0164_illustration_sm.jpg",
          "id":"564_sm",
          "layer":"sm"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/0164/0164_illustration_lg.jpg",
          "id":"564_lg",
          "layer":"lg"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/0164/Emss1358_scale.jpg",
          "id":"564_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/2237/2237_xray.jpg",
      "title":"Rosette Nebula",
      "description":"This series of Chandra images shows a mosaic of the Rosette Nebula region.",
      "url":"https://chandra.harvard.edu/photo/2001/2237",
      "id":"565",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/2237/2237_zoom.jpg",
          "id":"565_zoom",
          "layer":"zoom"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/2237/2237_comp.jpg",
          "id":"565_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/2237/2237_optical_xray.jpg",
          "id":"565_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/2237/2237_optical.jpg",
          "id":"565_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/2237/2237_xray.jpg",
          "id":"565_xray",
          "layer":"xray"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/2237/Rosette_scale.jpg",
          "id":"565_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/ks1731/ks1731_xray.jpg",
      "title":"KS 1731-260",
      "description":"Chandra's observation showed that KS 1731-260 is a remarkably 'cool' 3 million degrees Celsius.",
      "url":"https://chandra.harvard.edu/photo/2001/ks1731",
      "id":"566",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/ks1731/tiny_neutron.jpg",
          "id":"566_neutron",
          "layer":"neutron"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/ks1731/lightcurve.jpg",
          "id":"566_lightcurve",
          "layer":"lightcurve"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/ks1731/spectrum.jpg",
          "id":"566_spectrum",
          "layer":"spectrum"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/ks1731/neutron_accretion.jpg",
          "id":"566_accretion",
          "layer":"accretion"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/ks1731/Ks1731_scale.jpg",
          "id":"566_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/m15/m15_xray.jpg",
      "title":"M15",
      "description":"Chandra's image of  M15 shows that it is not one neutron star binary system, but two neutron star binary systems.",
      "url":"https://chandra.harvard.edu/photo/2001/m15",
      "id":"567",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/m15/m15_optical_plain.jpg",
          "id":"567_plain",
          "layer":"plain"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/m15/M15_scale.jpg",
          "id":"567_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/0204flare/0204flare_xray.jpg",
      "title":"Sagittarius A*",
      "description":"A compact radio source in the center of our Milky Way Galaxy thought to be a supermassive black hole.",
      "url":"https://chandra.harvard.edu/photo/2001/0204flare",
      "id":"568",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/0204flare/0204flare_xray_red.jpg",
          "id":"568_red",
          "layer":"red"
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          "src":"https://chandra.harvard.edu/photo/2001/0204flare/0204flare_xray_circle.jpg",
          "id":"568_circle",
          "layer":"circle"
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          "src":"https://chandra.harvard.edu/photo/2001/0204flare/SgrAStar_scale.jpg",
          "id":"568_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/1238/1238_xray.jpg",
      "title":"Galactic Plane",
      "description":"A portion of the plane of the Milky Way Galaxy in the constellation Scutum.",
      "url":"https://chandra.harvard.edu/photo/2001/1238",
      "id":"569",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/1238/1238_xray2.jpg",
          "id":"569_xray2",
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        {
          "src":"https://chandra.harvard.edu/photo/2001/1238/1238_xray_opt_comp.jpg",
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          "layer":"comp"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/1238/GalacticPlane_scale.jpg",
          "id":"569_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/0157blue/0157blue_xray.jpg",
      "title":"Centaurus A",
      "description":"A nearby massive elliptical galaxy with an active galactic nucleus in the constellation Centaurus.",
      "url":"https://chandra.harvard.edu/photo/2001/0157blue",
      "id":"570",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/0157blue/0157blue_optical1.jpg",
          "id":"570_optical1",
          "layer":"optical1"
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          "src":"https://chandra.harvard.edu/photo/2001/0157blue/0157blue_optical2.jpg",
          "id":"570_optical2",
          "layer":"optical2"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/0157blue/CenABlue_scale.jpg",
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/1138/1138_xray_opt.jpg",
      "title":"NGC 4631",
      "description":"A spiral galaxy about 25 million light years from Earth.",
      "url":"https://chandra.harvard.edu/photo/2001/1138",
      "id":"571",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/1138/1138_xray_uv.jpg",
          "id":"571_uv",
          "layer":"uv"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/1138/1138_optical.jpg",
          "id":"571_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/1138/1138_composite.jpg",
          "id":"571_composite",
          "layer":"composite"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/1138/1138_stacked.jpg",
          "id":"571_stacked",
          "layer":"stacked"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/1138/1138_xray_whole.jpg",
          "id":"571_whole",
          "layer":"whole"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/1138/1138_xray_center.jpg",
          "id":"571_center",
          "layer":"center"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/1138/1138_uv.jpg",
          "id":"571_uv",
          "layer":"uv"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/1138/1138_scale.jpg",
          "id":"571_scale",
          "layer":"scale"
        }
      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/velawv/velawv_xray.jpg",
      "title":"Vela Pulsar (Wide-Field View)",
      "description":"Wide-Field View of Vela Pulsar and its pulsar wind nebula.",
      "url":"https://chandra.harvard.edu/photo/2001/velawv",
      "id":"572",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/velawv/velawv_xray_arrow.jpg",
          "id":"572_arrow",
          "layer":"arrow"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/velawv/velawv_xray_closeup.jpg",
          "id":"572_closeup",
          "layer":"closeup"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/velawv/velawv_xray_comp.jpg",
          "id":"572_comp",
          "layer":"comp"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/velawv/velawv_xray_midrange.jpg",
          "id":"572_midrange",
          "layer":"midrange"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/velawv/velawv_scale.jpg",
          "id":"572_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/1252/1252_xray.jpg",
      "title":"NGC 7027",
      "description":"This image of NGC 7027 represents the first detection of X-rays from this young planetary nebula.",
      "url":"https://chandra.harvard.edu/photo/2001/1252",
      "id":"573",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/1252/1252_opt_xraycont.jpg",
          "id":"573_xraycont",
          "layer":"xraycont"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/1252/1252_opt.jpg",
          "id":"573_opt",
          "layer":"opt"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/1252/1252_xray_opt_overlay.jpg",
          "id":"573_overlay",
          "layer":"overlay"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/1252/1252_xray_scale.jpg",
          "id":"573_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/arches/arches_xray_ir_radio.jpg",
      "title":"Arches Cluster",
      "description":"This composite image shows an envelope of 60-million-degree gas around the Arches cluster.",
      "url":"https://chandra.harvard.edu/photo/2001/arches",
      "id":"574",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/arches/arches_xray_fullfield.jpg",
          "id":"574_fullfield",
          "layer":"fullfield"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/arches/arches_xray_scaled.jpg",
          "id":"574_scaled",
          "layer":"scaled"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/arches/arches_xray_ff.jpg",
          "id":"574_ff",
          "layer":"ff"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/arches/arches_ir_scaled.jpg",
          "id":"574_scaled",
          "layer":"scaled"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/arches/arches_opt_fullfield.jpg",
          "id":"574_fullfield",
          "layer":"fullfield"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/arches/arches_opt_scaled.jpg",
          "id":"574_scaled",
          "layer":"scaled"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/arches/arches_radio_fullfield.jpg",
          "id":"574_fullfield",
          "layer":"fullfield"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/arches/arches_radio_scaled.jpg",
          "id":"574_scaled",
          "layer":"scaled"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/arches/arches_radio_inset_halo.jpg",
          "id":"574_halo",
          "layer":"halo"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/0120true/0120true_xray.jpg",
      "title":"Antennae",
      "description":"This Chandra X-ray image shows the central regions of two colliding galaxies known collectively as \"The Antennae.\"",
      "url":"https://chandra.harvard.edu/photo/2001/0120true",
      "id":"575",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/0120true/0120true_opt.jpg",
          "id":"575_opt",
          "layer":"opt"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/0120true/lum_functions.jpg",
          "id":"575_functions",
          "layer":"functions"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/0120true/0120true_scale.jpg",
          "id":"575_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/0094true/0094true_xray.jpg",
      "title":"M82",
      "description":"This Chandra image shows a population of point-like \"ultraluminous\" X-ray sources in M82.",
      "url":"https://chandra.harvard.edu/photo/2001/0094true",
      "id":"576",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/0094true/0094true_scale.jpg",
          "id":"576_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/0012/0012_xray.jpg",
      "title":"NGC 253",
      "description":"A plume of 5 million degree gas in the central region of the galaxy extending above and below the disk of the galaxy.",
      "url":"https://chandra.harvard.edu/photo/2001/0012",
      "id":"577",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/0012/0012_xray.jpg",
          "id":"577_xray",
          "layer":"xray"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/0012/0012_xray_hard.jpg",
          "id":"577_hard",
          "layer":"hard"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/0012/0012_xray_medband.jpg",
          "id":"577_medband",
          "layer":"medband"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/0012/0012_xray_soft.jpg",
          "id":"577_soft",
          "layer":"soft"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/0012/0012_xray_3panels.jpg",
          "id":"577_3panels",
          "layer":"3panels"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/0004/0004_xray_zoom_comp.jpg",
      "title":"47 Tucanae",
      "description":"A globular cluster located about 15,000 light years from Earth in the constellation of Tucana.",
      "url":"https://chandra.harvard.edu/photo/2001/0004",
      "id":"578",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/0004/0004_xray_gbopt_comp.jpg",
          "id":"578_comp",
          "layer":"comp"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/0004/0004_optical.jpg",
          "id":"578_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/0004/0004_xray_full.jpg",
          "id":"578_full",
          "layer":"full"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/0004/0004_xray_zoom.jpg",
          "id":"578_zoom",
          "layer":"zoom"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/0004/0004_xray_opt_comp.jpg",
          "id":"578_comp",
          "layer":"comp"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/0004/0004_scale.jpg",
          "id":"578_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/0167/0167_xray.jpg",
      "title":"Circinus Galaxy",
      "description":"Chandra's observations of a large, nearby galaxy in the constellation of Circinus.",
      "url":"https://chandra.harvard.edu/photo/2001/0167",
      "id":"579",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2001/0167/0167_xray_opt.jpg",
          "id":"579_opt",
          "layer":"opt"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/0167/0167_optical.jpg",
          "id":"579_optical",
          "layer":"optical"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2001/0167/0167_2mass.jpg",
          "id":"579_2mass",
          "layer":"2mass"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/0167/0167_scale.jpg",
          "id":"579_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/xtej1118/xtej1118_xray.jpg",
      "title":"XTE J1118+480",
      "description":"Chandra image of a spectrum of a black hole, which is similar to the colorful spectrum of sunlight produced by a prism.",
      "url":"https://chandra.harvard.edu/photo/2001/xtej1118",
      "id":"580",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2001/xtej1118/xtej1118_illustration.jpg",
          "id":"580_illustration",
          "layer":"illustration"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/1006/1006_xray.jpg",
      "title":"GRB 010222",
      "description":"Data from this Chandra image suggest that gamma-ray bursts originate in regions of star formation.",
      "url":"https://chandra.harvard.edu/photo/2001/1006",
      "id":"581",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2001/1006/1006_bepposax.jpg",
          "id":"581_bepposax",
          "layer":"bepposax"
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          "src":"https://chandra.harvard.edu/photo/2001/1006/Grb010222_scale.jpg",
          "id":"581_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/cdfn/cdfn_xray.jpg",
      "title":"Chandra Deep Field-North",
      "description":"A view of one of the most intensively studied patches of the night sky.",
      "url":"https://chandra.harvard.edu/photo/2001/cdfn",
      "id":"582",
      "layers":[
        {
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          "src":"https://chandra.harvard.edu/photo/2001/cdfn/cdfn_hdfn_patch.jpg",
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      "src":"https://chandra.harvard.edu/photo/2001/cdfs/cdfs_xray.jpg",
      "title":"Chandra Deep Field South ",
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    {
      "src":"https://chandra.harvard.edu/photo/2001/hcg62/hcg62_xray.jpg",
      "title":"HCG 62",
      "description":"A new Chandra image shows remarkable detail and complexity in the central region of a compact galaxy.",
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      "id":"584",
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    {
      "src":"https://chandra.harvard.edu/photo/2001/3c294/3c294_xray.jpg",
      "title":"3C294",
      "description":"A cluster of galaxies some 10 billion light years from Earth.",
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      "id":"585",
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    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/sgr_a/sgr_a_xray.jpg",
      "title":"Sagittarius A East",
      "description":"Supernova remnant Sagittarius A East.",
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        {
          "src":"https://chandra.harvard.edu/photo/2001/sgr_a/sgr_a_radio.jpg",
          "id":"586_radio",
          "layer":"radio"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/sgr_a/sgr_a_schematic_radio.jpg",
          "id":"586_radio",
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          "src":"https://chandra.harvard.edu/photo/2001/sgr_a/SgrAEast_scale.jpg",
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          "layer":"scale"
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      ]
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    {
      "src":"https://chandra.harvard.edu/photo/2001/1123/1123_xray.jpg",
      "title":"NGC 3603",
      "description":"A bustling region of star birth in the Carina spiral arm of the Milky Way galaxy.",
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      "id":"587",
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          "src":"https://chandra.harvard.edu/photo/2001/1123/Ngc3603_scale.jpg",
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          "layer":"scale"
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    {
      "src":"https://chandra.harvard.edu/photo/2001/1227/1227_xray.jpg",
      "title":"G11.2-0.3",
      "description":"A supernova remnant with a central pulsar, located in the constellation of Sagittarius.",
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      "id":"588",
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          "src":"https://chandra.harvard.edu/photo/2001/1227/G11.2_scale.jpg",
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    },
    {
      "src":"https://chandra.harvard.edu/photo/2001/orion_mov/orion_mov.jpg",
      "title":"Orion Nebula Cluster",
      "description":"Time-lapse movie, made from hours of Chandra observations.",
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          "src":"https://chandra.harvard.edu/photo/2001/orion_mov/OrionNebMov_scale.jpg",
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          "layer":"scale"
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      ]
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    {
      "src":"https://chandra.harvard.edu/photo/2001/1220/1220_xray.jpg",
      "title":"NGC 6543",
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          "src":"https://chandra.harvard.edu/photo/2001/1220/1220_xray_opt.jpg",
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          "layer":"opt"
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          "src":"https://chandra.harvard.edu/photo/2001/1220/Ngc6543_scale.jpg",
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          "layer":"scale"
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        {
          "src":"https://chandra.harvard.edu/photo/2001/1220/Ngc6543_scale_xray.jpg",
          "id":"590_xray",
          "layer":"xray"
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    {
      "src":"https://chandra.harvard.edu/photo/2000/1083/1083_xray.jpg",
      "title":"IC 443",
      "description":"A supernova remnant with a newly discovered neutron star 5,000 light years from Earth.",
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    {
      "src":"https://chandra.harvard.edu/photo/2000/0163/0163_xray.jpg",
      "title":"Abell 1795",
      "description":"A cluster of galaxies with a prominent 'cooling flow'.",
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        {
          "src":"https://chandra.harvard.edu/photo/2000/0163/0163_radio.jpg",
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          "src":"https://chandra.harvard.edu/photo/2000/0163/0163_asca.jpg",
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          "layer":"scale"
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    {
      "src":"https://chandra.harvard.edu/photo/2000/0216/0216_xray.jpg",
      "title":"Cygnus A",
      "description":"A galaxy, some 700 million light years away, with a central black hole. ",
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          "src":"https://chandra.harvard.edu/photo/2000/0216/0216_xray_gray.jpg",
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          "src":"https://chandra.harvard.edu/photo/2000/0216/0216_radio_purple.jpg",
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          "layer":"purple"
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    {
      "src":"https://chandra.harvard.edu/photo/2000/0131/0131_xray.jpg",
      "title":"3C273",
      "description":"A quasar over 3 billion light years from Earth.",
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      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2000/0131/0131_multi.jpg",
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          "src":"https://chandra.harvard.edu/photo/2000/0131/0131_radio.jpg",
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          "src":"https://chandra.harvard.edu/photo/2000/0131/3C273_scale.jpg",
          "id":"594_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2000/0596/0596_xray.jpg",
      "title":"GRB 991216",
      "description":"Gamma Ray Burst observed on December 18, 1999.",
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      "src":"https://chandra.harvard.edu/photo/2000/1078/1078_xray.jpg",
      "title":"Zeta Orionis",
      "description":"O-star in the Orion constellation.",
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2000/0065/0065_xray.jpg",
      "title":"Sirius A and B",
      "description":"White dwarf and companion star resolved.",
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      "id":"597",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2000/0065/0065_optical.jpg",
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      ]
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    {
      "src":"https://chandra.harvard.edu/photo/2000/m82bh/m82bh.jpg",
      "title":"M82 Black Hole",
      "description":"Mid-mass black hole found 600 light years from galaxy center.",
      "url":"https://chandra.harvard.edu/photo/2000/m82bh",
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          "src":"https://chandra.harvard.edu/photo/2000/m82bh/m82_optical.jpg",
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          "layer":"pressure"
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    },
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      "src":"https://chandra.harvard.edu/photo/2000/0120/red.jpg",
      "title":"Antennae",
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2000/c1999s4/c1999s4_03.jpg",
      "title":"Comet C/1999 S4",
      "description":"X-ray image of cometary atmosphere.",
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      "id":"600",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2000/c1999s4/0026y.jpg",
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          "layer":"orbit"
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        {
          "src":"https://chandra.harvard.edu/photo/2000/c1999s4/c1999s4_03_nomarkup.jpg",
          "id":"600_nomarkup",
          "layer":"nomarkup"
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        {
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          "id":"600_notext",
          "layer":"notext"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2000/1054/lp94420.jpg",
      "title":"Brown Dwarf LP 944-20",
      "description":"X-ray flare from a brown dwarf.",
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      "id":"601",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2000/1054/browndwarf_scale.jpg",
          "id":"601_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2000/vela/vela_xray.jpg",
      "title":"Vela Pulsar",
      "description":"X-ray image of rings and jets in the compact nebula.",
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      "id":"602",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2000/vela/nebula_b.jpg",
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          "layer":"b"
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          "id":"602_b2",
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          "src":"https://chandra.harvard.edu/photo/2000/vela/vela3_b2.jpg",
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          "src":"https://chandra.harvard.edu/photo/2000/vela/vela7_b2.jpg",
          "id":"602_b2",
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        {
          "src":"https://chandra.harvard.edu/photo/2000/vela/vela5_more.jpg",
          "id":"602_more",
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        {
          "src":"https://chandra.harvard.edu/photo/2000/vela/vela6_more.jpg",
          "id":"602_more",
          "layer":"more"
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        {
          "src":"https://chandra.harvard.edu/photo/2000/vela/vela_scale.jpg",
          "id":"602_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2000/pne/pne_xray.jpg",
      "title":"BD+30-3639",
      "description":"Hot bubble imaged in planetary nebula.",
      "url":"https://chandra.harvard.edu/photo/2000/pne",
      "id":"603",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2000/pne/bd_hst.jpg",
          "id":"603_hst",
          "layer":"hst"
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          "src":"https://chandra.harvard.edu/photo/2000/pne/bd_gemini.jpg",
          "id":"603_gemini",
          "layer":"gemini"
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        {
          "src":"https://chandra.harvard.edu/photo/2000/pne/bd_sides.jpg",
          "id":"603_sides",
          "layer":"sides"
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        {
          "src":"https://chandra.harvard.edu/photo/2000/pne/pne_composite.jpg",
          "id":"603_composite",
          "layer":"composite"
        },
        {
          "src":"https://chandra.harvard.edu/photo/2000/pne/pne_scale.jpg",
          "id":"603_scale",
          "layer":"scale"
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      ]
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    {
      "src":"https://chandra.harvard.edu/photo/2000/pictor/pictor_xray.jpg",
      "title":"Pictor A",
      "description":"X-ray jet extends from active galaxy toward hot spot.",
      "url":"https://chandra.harvard.edu/photo/2000/pictor",
      "id":"604",
      "layers":[
        {
          "src":"https://chandra.harvard.edu/photo/2000/pictor/fig1_ps.jpg",
          "id":"604_ps",
          "layer":"ps"
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        {
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          "id":"604_scale",
          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2000/ngc4151/4151_xray.jpg",
      "title":"NGC 4151",
      "description":"X-ray image of large gas cloud near a black hole.",
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      "id":"605",
      "layers":[
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          "src":"https://chandra.harvard.edu/photo/2000/ngc4151/4151_spectrum.jpg",
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          "src":"https://chandra.harvard.edu/photo/2000/ngc4151/ngc4151_scale.jpg",
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          "layer":"scale"
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2000/perseus/perseus_xray.jpg",
      "title":"Perseus A",
      "description":"Features revealed in the core of the galaxy cluster.",
      "url":"https://chandra.harvard.edu/photo/2000/perseus",
      "id":"606",
      "layers":[
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          "id":"606_asmooth",
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          "id":"606_large",
          "layer":"large"
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          "src":"https://chandra.harvard.edu/photo/2000/perseus/smallblue2.jpg",
          "id":"606_smallblue2",
          "layer":"smallblue2"
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          "id":"606_3c84",
          "layer":"3c84"
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          "src":"https://chandra.harvard.edu/photo/2000/perseus/perseus_scale.jpg",
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      ]
    },
    {
      "src":"https://chandra.harvard.edu/photo/2000/sn1987a/sn1987a_xray.jpg",
      "title":"Supernova 1987A",
      "description":"X-ray image of a young supernova shock wave.",
      "url":"https://chandra.harvard.edu/photo/2000/sn1987a",
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}