Credit: NASA/DOE/Fermi LAT Collaboration", "items": [ { "id": 214598, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373448, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Fermi_144-month_Fermi_all-sky_hammer_2160x1080.png", "filename": "Fermi_144-month_Fermi_all-sky_hammer_2160x1080.png", "media_type": "Image", "alt_text": "This image shows the entire sky as seen by Fermi's Large Area Telescope. The most prominent feature is the bright, diffuse glow running along the middle of the map, which marks the central plane of our Milky Way galaxy. The gamma rays there are mostly produced when energetic particles accelerated in the shock waves of supernova remnants collide with gas atoms and even light between the stars. Many of the star-like features above and below the Milky Way plane are distant galaxies powered by supermassive black holes. Many of the bright sources along the plane are pulsars. The image was constructed from 12 years of observations using front-converting gamma rays with energies greater than 1 GeV. Hammer projection.Credit: NASA/DOE/Fermi LAT Collaboration", "width": 2160, "height": 1080, "pixels": 2332800 } }, { "id": 214596, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373449, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Fermi_144-month_Fermi_all-sky_hammer_4000x2000.png", "filename": "Fermi_144-month_Fermi_all-sky_hammer_4000x2000.png", "media_type": "Image", "alt_text": "This image shows the entire sky as seen by Fermi's Large Area Telescope. The most prominent feature is the bright, diffuse glow running along the middle of the map, which marks the central plane of our Milky Way galaxy. The gamma rays there are mostly produced when energetic particles accelerated in the shock waves of supernova remnants collide with gas atoms and even light between the stars. Many of the star-like features above and below the Milky Way plane are distant galaxies powered by supermassive black holes. Many of the bright sources along the plane are pulsars. The image was constructed from 12 years of observations using front-converting gamma rays with energies greater than 1 GeV. Hammer projection.Credit: NASA/DOE/Fermi LAT Collaboration", "width": 4000, "height": 2000, "pixels": 8000000 } }, { "id": 214597, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373450, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Fermi_144-month_Fermi_all-sky_hammer_3600x1800.png", "filename": "Fermi_144-month_Fermi_all-sky_hammer_3600x1800.png", "media_type": "Image", "alt_text": "This image shows the entire sky as seen by Fermi's Large Area Telescope. The most prominent feature is the bright, diffuse glow running along the middle of the map, which marks the central plane of our Milky Way galaxy. The gamma rays there are mostly produced when energetic particles accelerated in the shock waves of supernova remnants collide with gas atoms and even light between the stars. Many of the star-like features above and below the Milky Way plane are distant galaxies powered by supermassive black holes. Many of the bright sources along the plane are pulsars. The image was constructed from 12 years of observations using front-converting gamma rays with energies greater than 1 GeV. Hammer projection.Credit: NASA/DOE/Fermi LAT Collaboration", "width": 3600, "height": 1800, "pixels": 6480000 } }, { "id": 214599, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373451, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Fermi_144-month_Fermi_all-sky_hammer_2160x1080_print.jpg", "filename": "Fermi_144-month_Fermi_all-sky_hammer_2160x1080_print.jpg", "media_type": "Image", "alt_text": "This image shows the entire sky as seen by Fermi's Large Area Telescope. The most prominent feature is the bright, diffuse glow running along the middle of the map, which marks the central plane of our Milky Way galaxy. The gamma rays there are mostly produced when energetic particles accelerated in the shock waves of supernova remnants collide with gas atoms and even light between the stars. Many of the star-like features above and below the Milky Way plane are distant galaxies powered by supermassive black holes. Many of the bright sources along the plane are pulsars. The image was constructed from 12 years of observations using front-converting gamma rays with energies greater than 1 GeV. Hammer projection.Credit: NASA/DOE/Fermi LAT Collaboration", "width": 1024, "height": 512, "pixels": 524288 } } ], "extra_data": {} }, { "id": 315323, "url": "https://svs.gsfc.nasa.gov/14090/#media_group_315323", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "These all-sky view shows how the sky appears at energies greater than 1 billion electron volts (GeV) according to 12 years of data from NASA's Fermi Gamma-ray Space Telescope. (For comparison, the energy of visible light is between 2 and 3 electron volts.) The image contains 144 months of data from Fermi's Large Area Telescope; for better angular resolution, the map shows only gamma rays detected at the front of the instrument's tracker. Lighter colors indicate brighter gamma-ray sources. The images show the entire sky in galactic coordinates, in which the center is the center of our galaxy. The bright midplane of our galaxy runs across the images.", "items": [], "extra_data": {} }, { "id": 315325, "url": "https://svs.gsfc.nasa.gov/14090/#media_group_315325", "widget": "Single image", "title": "", "caption": "", "description": "Same as above but in the equidistant cylindrical projection.
Credit: NASA/DOE/Fermi LAT Collaboration", "items": [ { "id": 214601, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373452, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Fermi_144_month_all-sky-cyl_3600x1800.png", "filename": "Fermi_144_month_all-sky-cyl_3600x1800.png", "media_type": "Image", "alt_text": "Same as above but in the equidistant cylindrical projection.Credit: NASA/DOE/Fermi LAT Collaboration", "width": 3600, "height": 1800, "pixels": 6480000 } }, { "id": 214600, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373453, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Fermi_144_month_all-sky-cyl_4000x2000.png", "filename": "Fermi_144_month_all-sky-cyl_4000x2000.png", "media_type": "Image", "alt_text": "Same as above but in the equidistant cylindrical projection.Credit: NASA/DOE/Fermi LAT Collaboration", "width": 4096, "height": 2048, "pixels": 8388608 } }, { "id": 214602, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373454, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Fermi_144_month_all-sky-cyl_3600x1800_print.jpg", "filename": "Fermi_144_month_all-sky-cyl_3600x1800_print.jpg", "media_type": "Image", "alt_text": "Same as above but in the equidistant cylindrical projection.Credit: NASA/DOE/Fermi LAT Collaboration", "width": 1024, "height": 512, "pixels": 524288 } }, { "id": 214603, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373455, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Fermi_144_month_all-sky-cyl_3600x1800_searchweb.png", "filename": "Fermi_144_month_all-sky-cyl_3600x1800_searchweb.png", "media_type": "Image", "alt_text": "Same as above but in the equidistant cylindrical projection.Credit: NASA/DOE/Fermi LAT Collaboration", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 214604, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373456, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Fermi_144_month_all-sky-cyl_3600x1800_thm.png", "filename": "Fermi_144_month_all-sky-cyl_3600x1800_thm.png", "media_type": "Image", "alt_text": "Same as above but in the equidistant cylindrical projection.Credit: NASA/DOE/Fermi LAT Collaboration", "width": 80, "height": 40, "pixels": 3200 } } ], "extra_data": {} }, { "id": 315326, "url": "https://svs.gsfc.nasa.gov/14090/#media_group_315326", "widget": "Single image", "title": "", "caption": "", "description": "This animation cycles between images that encapsulate decades of progress in gamma-ray astrophysics. The lower-resolution image shows the sky as seen by the EGRET instrument aboard NASA's Compton Gamma-Ray Observatory (1991 to 2000) using gamma rays above 100 million electron volts. Lighter colors indicate greater numbers of gamma rays. The most prominent feature is the central plane of our galaxy, which runs across the middle of the map, a result of gamma rays produced when accelerated particles strike interstellar gas and starlight. The largest yellow spot on the right side of the galactic plane is the Vela pulsar, one of five new gamma-ray pulsars EGRET discovered. The prominent reddish blob at top right is the blazar 3C 279. The all-sky map produced by Fermi's Large Area Telescope (LAT), using 12 years of data, is sharper, more detailed, and shows gamma rays of much higher ennergy than EGRET's. In its first five years, the LAT detected more than 10 times the number of gamma-ray sources seen by EGRET and had captured more high-energy gamma rays from a single source, the Vela pulsar, than the total number EGRET detected from all sources.
Credit: NASA/EGRET Team and NASA/DOE/Fermi LAT Collaboration", "items": [ { "id": 214605, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373457, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Compton_v_Fermi_all-sky.gif", "filename": "Compton_v_Fermi_all-sky.gif", "media_type": "Image", "alt_text": "This animation cycles between images that encapsulate decades of progress in gamma-ray astrophysics. The lower-resolution image shows the sky as seen by the EGRET instrument aboard NASA's Compton Gamma-Ray Observatory (1991 to 2000) using gamma rays above 100 million electron volts. Lighter colors indicate greater numbers of gamma rays. The most prominent feature is the central plane of our galaxy, which runs across the middle of the map, a result of gamma rays produced when accelerated particles strike interstellar gas and starlight. The largest yellow spot on the right side of the galactic plane is the Vela pulsar, one of five new gamma-ray pulsars EGRET discovered. The prominent reddish blob at top right is the blazar 3C 279. The all-sky map produced by Fermi's Large Area Telescope (LAT), using 12 years of data, is sharper, more detailed, and shows gamma rays of much higher ennergy than EGRET's. In its first five years, the LAT detected more than 10 times the number of gamma-ray sources seen by EGRET and had captured more high-energy gamma rays from a single source, the Vela pulsar, than the total number EGRET detected from all sources.Credit: NASA/EGRET Team and NASA/DOE/Fermi LAT Collaboration", "width": 938, "height": 471, "pixels": 441798 } }, { "id": 214606, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373458, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Compton_v_Fermi_all-sky_print.jpg", "filename": "Compton_v_Fermi_all-sky_print.jpg", "media_type": "Image", "alt_text": "This animation cycles between images that encapsulate decades of progress in gamma-ray astrophysics. The lower-resolution image shows the sky as seen by the EGRET instrument aboard NASA's Compton Gamma-Ray Observatory (1991 to 2000) using gamma rays above 100 million electron volts. Lighter colors indicate greater numbers of gamma rays. The most prominent feature is the central plane of our galaxy, which runs across the middle of the map, a result of gamma rays produced when accelerated particles strike interstellar gas and starlight. The largest yellow spot on the right side of the galactic plane is the Vela pulsar, one of five new gamma-ray pulsars EGRET discovered. The prominent reddish blob at top right is the blazar 3C 279. The all-sky map produced by Fermi's Large Area Telescope (LAT), using 12 years of data, is sharper, more detailed, and shows gamma rays of much higher ennergy than EGRET's. In its first five years, the LAT detected more than 10 times the number of gamma-ray sources seen by EGRET and had captured more high-energy gamma rays from a single source, the Vela pulsar, than the total number EGRET detected from all sources.Credit: NASA/EGRET Team and NASA/DOE/Fermi LAT Collaboration", "width": 1024, "height": 514, "pixels": 526336 } } ], "extra_data": {} }, { "id": 315327, "url": "https://svs.gsfc.nasa.gov/14090/#media_group_315327", "widget": "Single image", "title": "", "caption": "", "description": "These images encapsulate decades of progress in gamma-ray astrophysics. Top: The sky as seen by the EGRET instrument aboard NASA's Compton Gamma-Ray Observatory (1991 to 2000) using gamma rays above 100 million electron volts. Lighter colors indicate greater numbers of gamma rays. The most prominent feature is the central plane of our galaxy, which runs across the middle of the map, a result of gamma rays produced when accelerated particles strike interstellar gas and starlight. The largest yellow spot on the right side of the galactic plane is the Vela pulsar, one of five new gamma-ray pulsars EGRET discovered. The prominent reddish blob at top right is the blazar 3C 279. Bottom: The all-sky map produced by Fermi's Large Area Telescope (LAT), using 12 years of data, is sharper, more detailed, and shows gamma rays of much higher ennergy than EGRET's. In its first five years, the LAT detected more than 10 times the number of gamma-ray sources seen by EGRET and had captured more high-energy gamma rays from a single source, the Vela pulsar, than the total number EGRET detected from all sources.
Credit: NASA/EGRET Team and NASA/DOE/Fermi LAT Collaboration", "items": [ { "id": 214609, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373461, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Compton_v_Fermi_all-sky_934x1080.png", "filename": "Compton_v_Fermi_all-sky_934x1080.png", "media_type": "Image", "alt_text": "These images encapsulate decades of progress in gamma-ray astrophysics. Top: The sky as seen by the EGRET instrument aboard NASA's Compton Gamma-Ray Observatory (1991 to 2000) using gamma rays above 100 million electron volts. Lighter colors indicate greater numbers of gamma rays. The most prominent feature is the central plane of our galaxy, which runs across the middle of the map, a result of gamma rays produced when accelerated particles strike interstellar gas and starlight. The largest yellow spot on the right side of the galactic plane is the Vela pulsar, one of five new gamma-ray pulsars EGRET discovered. The prominent reddish blob at top right is the blazar 3C 279. Bottom: The all-sky map produced by Fermi's Large Area Telescope (LAT), using 12 years of data, is sharper, more detailed, and shows gamma rays of much higher ennergy than EGRET's. In its first five years, the LAT detected more than 10 times the number of gamma-ray sources seen by EGRET and had captured more high-energy gamma rays from a single source, the Vela pulsar, than the total number EGRET detected from all sources.Credit: NASA/EGRET Team and NASA/DOE/Fermi LAT Collaboration", "width": 934, "height": 1080, "pixels": 1008720 } }, { "id": 214610, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373462, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Compton_v_Fermi_all-sky_934x1080_print.jpg", "filename": "Compton_v_Fermi_all-sky_934x1080_print.jpg", "media_type": "Image", "alt_text": "These images encapsulate decades of progress in gamma-ray astrophysics. Top: The sky as seen by the EGRET instrument aboard NASA's Compton Gamma-Ray Observatory (1991 to 2000) using gamma rays above 100 million electron volts. Lighter colors indicate greater numbers of gamma rays. The most prominent feature is the central plane of our galaxy, which runs across the middle of the map, a result of gamma rays produced when accelerated particles strike interstellar gas and starlight. The largest yellow spot on the right side of the galactic plane is the Vela pulsar, one of five new gamma-ray pulsars EGRET discovered. The prominent reddish blob at top right is the blazar 3C 279. Bottom: The all-sky map produced by Fermi's Large Area Telescope (LAT), using 12 years of data, is sharper, more detailed, and shows gamma rays of much higher ennergy than EGRET's. In its first five years, the LAT detected more than 10 times the number of gamma-ray sources seen by EGRET and had captured more high-energy gamma rays from a single source, the Vela pulsar, than the total number EGRET detected from all sources.Credit: NASA/EGRET Team and NASA/DOE/Fermi LAT Collaboration", "width": 1024, "height": 1184, "pixels": 1212416 } }, { "id": 214607, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373459, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Compton_v_Fermi_all-sky_1867x2160.png", "filename": "Compton_v_Fermi_all-sky_1867x2160.png", "media_type": "Image", "alt_text": "These images encapsulate decades of progress in gamma-ray astrophysics. Top: The sky as seen by the EGRET instrument aboard NASA's Compton Gamma-Ray Observatory (1991 to 2000) using gamma rays above 100 million electron volts. Lighter colors indicate greater numbers of gamma rays. The most prominent feature is the central plane of our galaxy, which runs across the middle of the map, a result of gamma rays produced when accelerated particles strike interstellar gas and starlight. The largest yellow spot on the right side of the galactic plane is the Vela pulsar, one of five new gamma-ray pulsars EGRET discovered. The prominent reddish blob at top right is the blazar 3C 279. Bottom: The all-sky map produced by Fermi's Large Area Telescope (LAT), using 12 years of data, is sharper, more detailed, and shows gamma rays of much higher ennergy than EGRET's. In its first five years, the LAT detected more than 10 times the number of gamma-ray sources seen by EGRET and had captured more high-energy gamma rays from a single source, the Vela pulsar, than the total number EGRET detected from all sources.Credit: NASA/EGRET Team and NASA/DOE/Fermi LAT Collaboration", "width": 1867, "height": 2160, "pixels": 4032720 } }, { "id": 214608, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 373460, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014000/a014090/Compton_v_Fermi_all-sky_7200x8331.png", "filename": "Compton_v_Fermi_all-sky_7200x8331.png", "media_type": "Image", "alt_text": "These images encapsulate decades of progress in gamma-ray astrophysics. Top: The sky as seen by the EGRET instrument aboard NASA's Compton Gamma-Ray Observatory (1991 to 2000) using gamma rays above 100 million electron volts. Lighter colors indicate greater numbers of gamma rays. The most prominent feature is the central plane of our galaxy, which runs across the middle of the map, a result of gamma rays produced when accelerated particles strike interstellar gas and starlight. The largest yellow spot on the right side of the galactic plane is the Vela pulsar, one of five new gamma-ray pulsars EGRET discovered. The prominent reddish blob at top right is the blazar 3C 279. Bottom: The all-sky map produced by Fermi's Large Area Telescope (LAT), using 12 years of data, is sharper, more detailed, and shows gamma rays of much higher ennergy than EGRET's. In its first five years, the LAT detected more than 10 times the number of gamma-ray sources seen by EGRET and had captured more high-energy gamma rays from a single source, the Vela pulsar, than the total number EGRET detected from all sources.Credit: NASA/EGRET Team and NASA/DOE/Fermi LAT Collaboration", "width": 7200, "height": 8331, "pixels": 59983200 } } ], "extra_data": {} } ], "studio": "GMS", "funding_sources": [ "PAO" ], "credits": [ { "role": "Science writer", "people": [ { "name": "Francis Reddy", "employer": "University of Maryland College Park" } ] } ], "missions": [ "Fermi Gamma-ray Space Telescope" ], "series": [], "tapes": [], "papers": [], "datasets": [ { "name": "", "common_name": "", "platform": "Fermi", "sensor": "LAT", "type": "Event List", "organizations": [], "description": "Fermi Gamma-ray Large Area Space Telescope (GLAST) Large Area Telescope (LAT)", "credit": "", "url": "http://fermi.gsfc.nasa.gov", "date_range": null } ], "nasa_science_categories": [ "Universe" ], "keywords": [ "Ast", "Astrophysics", "Fermi", "Galaxy", "Gamma Ray", "Space", "Universe" ], "recommended_pages": [], "related": [ { "id": 12194, "url": "https://svs.gsfc.nasa.gov/12194/", "page_type": "Produced Video", "title": "The Compton Legacy: A Quarter-century of Gamma-ray Science", "description": "This illustration of the Compton Gamma Ray Observatory shows the locations of its four instruments, the Burst And Transient Source Experiment (BATSE), the Oriented Scintillation Spectrometer Experiment (OSSE), the Imaging Compton Telescope (COMPTEL), and the Energetic Gamma Ray Experiment Telescope (EGRET). Credit: NASA's Goddard Space Flight Center || GRO_cutaway_labels_1080.jpg (1920x1081) [668.9 KB] || GRO_cutaway_labels_2160.jpg (3840x2161) [5.2 MB] || GRO_cutaway_labels_2160_searchweb.png (320x180) [116.1 KB] || GRO_cutaway_labels_2160_thm.png (80x40) [12.2 KB] || ", "release_date": "2016-04-07T12:55:00-04:00", "update_date": "2023-05-03T13:48:44.205610-04:00", "main_image": { "id": 425386, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012100/a012194/GRO_cutaway_labels_2160.jpg", "filename": "GRO_cutaway_labels_2160.jpg", "media_type": "Image", "alt_text": "This illustration of the Compton Gamma Ray Observatory shows the locations of its four instruments, the Burst And Transient Source Experiment (BATSE), the Oriented Scintillation Spectrometer Experiment (OSSE), the Imaging Compton Telescope (COMPTEL), and the Energetic Gamma Ray Experiment Telescope (EGRET). Credit: NASA's Goddard Space Flight Center", "width": 3840, "height": 2161, "pixels": 8298240 } }, { "id": 12121, "url": "https://svs.gsfc.nasa.gov/12121/", "page_type": "Produced Video", "title": "Gamma-ray Vision", "description": "NASA’s Fermi mission provides the best view of the high-energy gamma-ray sky yet seen. || c-1920.jpg (1920x1080) [236.3 KB] || c-1280.jpg (1280x720) [143.9 KB] || c-1024.jpg (1024x576) [116.8 KB] || c-1024_print.jpg (1024x576) [125.8 KB] || c-1024_searchweb.png (320x180) [76.2 KB] || c-1024_web.png (320x180) [76.2 KB] || c-1024_thm.png (80x40) [20.3 KB] || ", "release_date": "2016-01-12T11:00:00-05:00", "update_date": "2023-05-03T13:48:58.888485-04:00", "main_image": { "id": 436196, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012100/a012121/c-1024_print.jpg", "filename": "c-1024_print.jpg", "media_type": "Image", "alt_text": "NASA’s Fermi mission provides the best view of the high-energy gamma-ray sky yet seen.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 12022, "url": "https://svs.gsfc.nasa.gov/12022/", "page_type": "Produced Video", "title": "Poster: Fermi's Gamma-ray Cosmos", "description": "This poster summarizes the career to date of NASA's Fermi Gamma-ray Space Telescope. The central image is a map of the whole sky at gamma-ray wavelengths accumulated over six years of operations. The poster also discusses other Fermi findings, including a black widow pulsar, the Fermi Bubbles rising thousands of light-years out of our galaxy's center, a giant gamma-ray flare from the Crab Nebula, and many more.The poster is available in a variety of resolutions.Credit: NASA/Fermi/Sonoma State University/A. Simonnet || FskymaPoster15-2400_print.jpg (1024x658) [1.4 MB] || FskymaPoster15.jpg (11775x7575) [24.4 MB] || FskymaPoster15-half.jpg (5888x3788) [11.0 MB] || FskymaPoster15-3840.jpg (3840x2470) [6.3 MB] || FskymaPoster15-2400.jpg (2400x1544) [3.2 MB] || FskymaPoster15-2400_searchweb.png (320x180) [490.4 KB] || FskymaPoster15-2400_thm.png (80x40) [401.9 KB] || FskymaPoster15.tif (11775x7575) [340.8 MB] || ", "release_date": "2015-10-09T00:00:00-04:00", "update_date": "2023-05-03T13:49:15.086086-04:00", "main_image": { "id": 438795, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012022/FskymaPoster15-2400_print.jpg", "filename": "FskymaPoster15-2400_print.jpg", "media_type": "Image", "alt_text": "This poster summarizes the career to date of NASA's Fermi Gamma-ray Space Telescope. The central image is a map of the whole sky at gamma-ray wavelengths accumulated over six years of operations. The poster also discusses other Fermi findings, including a black widow pulsar, the Fermi Bubbles rising thousands of light-years out of our galaxy's center, a giant gamma-ray flare from the Crab Nebula, and many more.The poster is available in a variety of resolutions.Credit: NASA/Fermi/Sonoma State University/A. Simonnet", "width": 1024, "height": 658, "pixels": 673792 } }, { "id": 11342, "url": "https://svs.gsfc.nasa.gov/11342/", "page_type": "Produced Video", "title": "Fermi's Five-year View of the Gamma-ray Sky", "description": "This all-sky view shows how the sky appears at energies greater than 1 billion electron volts (GeV) according to five years of data from NASA's Fermi Gamma-ray Space Telescope. (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": "2023-11-02T10:25:56.800572-04:00", "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 } }, { "id": 10887, "url": "https://svs.gsfc.nasa.gov/10887/", "page_type": "Produced Video", "title": "NASA's Fermi Space Telescope Explores New Energy Extremes", "description": "After more than three years in space, NASA's Fermi Gamma-ray Space Telescope is extending its view of the high-energy sky into a range that to date has been largely unexplored territory. Now, the Fermi team has presented its first \"head count\" of sources in this new realm.Fermi's Large Area Telescope (LAT) scans the entire sky every three hours, continually deepening its portrait of the sky in gamma rays, the most extreme form of light. While the energy of visible light falls between about 2 and 3 electron volts, the LAT detects gamma rays with energies ranging from 20 million electron volts (MeV) to more than 300 billion (GeV).But at higher energies, gamma rays are few and far between. Above 10 GeV, even Fermi's LAT detects only one gamma ray every four months from some sources. The LAT's predecessor, the EGRET instrument on NASA's Compton Gamma Ray Observatory, detected only 1,500 individual gamma rays in this range during its nine-year lifetime, while the LAT detected more than 150,000 in just three years.Any object producing gamma rays at these energies is undergoing extraordinary astrophysical processes. More than half of the 496 sources in the new census are active galaxies, where matter falling into a supermassive black hole powers jets that spray out particles at nearly the speed of light. || ", "release_date": "2012-01-10T10:00:00-05:00", "update_date": "2023-05-03T13:53:20.645444-04:00", "main_image": { "id": 480104, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010800/a010887/Fermi-3-year-SMALL.jpg", "filename": "Fermi-3-year-SMALL.jpg", "media_type": "Image", "alt_text": "Fermi's view of the gamma-ray sky continually improves. This image of the entire sky includes three years of observations by Fermi's Large Area Telescope (LAT). It shows how the sky appears at energies greater than 1 billion electron volts (1 GeV). Brighter colors indicate brighter gamma-ray sources. A diffuse glow fills the sky and is brightest along the plane of our galaxy (middle). Discrete gamma-ray sources include pulsars and supernova remnants within our galaxy as well as distant galaxies powered by supermassive black holes. Credit: NASA/DOE/Fermi LAT Collaboration", "width": 3487, "height": 2000, "pixels": 6974000 } }, { "id": 10819, "url": "https://svs.gsfc.nasa.gov/10819/", "page_type": "Produced Video", "title": "Fermi's Latest Gamma-ray Census Highlights Cosmic Mysteries", "description": "Every three hours, NASA's Fermi Gamma-ray Space Telescope scans the entire sky and deepens its portrait of the high-energy universe. Every year, the satellite's scientists reanalyze all of the data it has collected, exploiting updated analysis methods to tease out new sources. These relatively steady sources are in addition to the numerous transient events Fermi detects, such as gamma-ray bursts in the distant universe and flares from the sun.Earlier this year, the Fermi team released its second catalog of sources detected by the satellite's Large Area Telescope (LAT), producing an inventory of 1,873 objects shining with the highest-energy form of light. More than half of these sources are active galaxies whose supermassive black hole centers are causing the gamma-ray emissions. || ", "release_date": "2011-09-09T09:00:00-04:00", "update_date": "2023-05-03T13:53:38.663881-04:00", "main_image": { "id": 483805, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010800/a010819/Blazar_Still_2.jpg", "filename": "Blazar_Still_2.jpg", "media_type": "Image", "alt_text": "Active galaxies called blazars make up the largest class of objects detected by Fermi's Large Area Telescope (LAT). Massive black holes in the hearts of these galaxies fire particle jets in our direction. Fermi team member Elizabeth Hays narrates this quick tour of blazars, which includes LAT movies showing how rapidly their emissions can change. Credit: NASA/Goddard Space Flight Center/CI LabWatch this video on the NASAexplorer YouTube channel.For complete transcript, click here.", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 10505, "url": "https://svs.gsfc.nasa.gov/10505/", "page_type": "Produced Video", "title": "Blazars at Galactic North Pole, Seen in Fermi's First Year of Observations", "description": "Fermi has detected more than 1,000 gamma-ray sources. Half are associated with active galaxies called blazars. This movie shows one year of blazar activity, starting on Aug. 4, 2008, around the galactic north pole. This region includes the constellations Ursa Major, Virgo, Leo, Boötes, and Coma Berenices. || ", "release_date": "2009-10-28T01:45:00-04:00", "update_date": "2023-11-14T00:18:23.038244-05:00", "main_image": { "id": 495498, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010505/Fermi_North_Pole_640x480.00102_print.jpg", "filename": "Fermi_North_Pole_640x480.00102_print.jpg", "media_type": "Image", "alt_text": "Galactic north pole map of blazars observed by Fermi, without overlays.", "width": 1024, "height": 1024, "pixels": 1048576 } }, { "id": 10508, "url": "https://svs.gsfc.nasa.gov/10508/", "page_type": "Produced Video", "title": "Fermi All-Sky First Year Progress", "description": "This view of the gamma-ray sky constructed from one year of Fermi LAT observations is the best view of the extreme universe to date. The map shows the rate at which the LAT detects gamma rays with energies above 300 million electron volts — about 120 million times the energy of visible light — from different sky directions. Brighter colors equal higher rates. || ", "release_date": "2009-10-28T01:45:00-04:00", "update_date": "2023-05-03T13:54:30.903017-04:00", "main_image": { "id": 495519, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010508/NEW_Fermi_All_Sky_Dissolve_512x288.00452_print.jpg", "filename": "NEW_Fermi_All_Sky_Dissolve_512x288.00452_print.jpg", "media_type": "Image", "alt_text": "Sequence of dissolves showing the improvement in the Fermi all-sky map, from 1 week to 1 year.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 10407, "url": "https://svs.gsfc.nasa.gov/10407/", "page_type": "Produced Video", "title": "Fermi All-sky Movie Shows Flaring, Fading Blazars", "description": "This all-sky movie shows counts of gamma rays with energies greater than 300 million electron volts from August 4 to October 30, 2008, detected by Fermi's Large Area Telescope. Brighter colors indicate brighter gamma-ray sources. The circles show the northern (left) and southern galactic sky. Their edges lie along the plane of our galaxy, the Milky Way. Because this is an unusual view of the sky, the movies first overlay the stars and establish the locations of well- known constellations: Ursa Major (which includes the Big Dipper), Boötes, and Virgo in the northern galactic map; Cetus, Aries, and Pegasus in the southern galactic map. Notable gamma-ray sources include the sun (moving through the northern sky), the gamma-ray-only pulsar PSR J1836+5925 — a member of a new pulsar class discovered by Fermi — and numerous blazars (active galaxies). The blazars 3C 273, AO 0235+164, and PKS 1502+106 are highlighted. || ", "release_date": "2009-04-03T14:00:00-04:00", "update_date": "2023-05-03T13:54:51.330497-04:00", "main_image": { "id": 499092, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010400/a010407/Fermi_North_South_Tour_512x288.00002_print.jpg", "filename": "Fermi_North_South_Tour_512x288.00002_print.jpg", "media_type": "Image", "alt_text": "This all-sky movie shows Fermi LAT counts of gamma rays with energies greater than 300 million electron volts from August 4 to October 30, 2008. Brighter colors indicate brighter gamma-ray sources. The circles show the northern (left) and southern galactic sky. Their edges lie along the plane of our galaxy, the Milky Way.", "width": 1024, "height": 576, "pixels": 589824 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }