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Astronomers wrapped the Fermi Gamma-ray Space Telescope's first all-sky map over a sphere to produce this view of the gamma-ray universe. The globe in this animation rotates showing the galactic plane and the north galactic pole, then tilts up to show the south galactic pole region.", "items": [ { "id": 347358, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 502079, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010300/a010347/GLAST_first_light_all_sky_map.00052_print.jpg", "filename": "GLAST_first_light_all_sky_map.00052_print.jpg", "media_type": "Image", "alt_text": "Orthographic MapAstronomers wrapped the Fermi Gamma-ray Space Telescope's first all-sky map over a sphere to produce this view of the gamma-ray universe. 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Gas and dust in the plane of the Milky Way glows in gamma rays thanks to collisions with accelerated nuclei called cosmic rays. The famous Crab Nebula and Vela pulsars also shine brightly at these wavelengths. This animated close-up shows the Vela pulsar, which beams radiation every 89 milliseconds as it spins. The pulses are shown slowed down by a factor of 20.", "items": [ { "id": 347365, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 502086, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010300/a010347/GLAST_first_light_vela.00002_print.jpg", "filename": "GLAST_first_light_vela.00002_print.jpg", "media_type": "Image", "alt_text": "Vela PulsarGas and dust in the plane of the Milky Way glows in gamma rays thanks to collisions with accelerated nuclei called cosmic rays. The famous Crab Nebula and Vela pulsars also shine brightly at these wavelengths. 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This all-sky image shows bright emission in the plane of the Milky Way (center), bright pulsars, and supermassive black holes. The map combines 95 hours of the LAT instrument's \"first light\" observations.", "items": [ { "id": 347368, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 502089, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010300/a010347/GLAST_First_Light_All_Sky_labeled_web.png", "filename": "GLAST_First_Light_All_Sky_labeled_web.png", "media_type": "Image", "alt_text": "First Light All-Sky MapThis all-sky image shows bright emission in the plane of the Milky Way (center), bright pulsars, and supermassive black holes. 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(For comparison, the energy of visible light is between 2 and 3 electron volts.) The image contains 60 months of data from Fermi's Large Area Telescope; for better angular resolution, the map shows only gamma rays converted at the front of the instrument's tracker. Brighter colors indicate brighter gamma-ray sources. The map is shown in galactic coordinates, which places the midplane of our galaxy along the center. The five-year Fermi map is available in multiple resolutions below, along with additional plots containing reference information and identifying some of the brightest sources. || ", "release_date": "2013-08-21T13:00:00-04:00", "update_date": "2021-09-10T15:10:50-04:00", "main_image": { "id": 462843, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011300/a011342/Femri_5_year_11000x6189_web.jpg", "filename": "Femri_5_year_11000x6189_web.jpg", "media_type": "Image", "alt_text": "The Fermi LAT 60-month image, constructed from front-converting gamma rays with energies greater than 1 GeV. The most prominent feature is the bright band of diffuse glow along the map's center, which marks the central plane of our Milky Way galaxy. The gamma rays are mostly produced when energetic particles accelerated in the shock waves of supernova remnants collide with gas atoms and even light between the stars. Hammer projection. Image credit: NASA/DOE/Fermi LAT Collaboration", "width": 320, "height": 180, "pixels": 57600 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }