{
    "count": 41,
    "next": null,
    "previous": null,
    "results": [
        {
            "id": 20122,
            "url": "https://svs.gsfc.nasa.gov/20122/",
            "result_type": "Animation",
            "release_date": "2012-02-25T00:00:00-05:00",
            "title": "Fermi's LAT Instrument",
            "description": "Fermi's Large Area Telescope (LAT) detects particles produced in a physical process known as pair production that epitomizes Einstein's famous equation, E=mc2. When a gamma ray, which is pure energy (E), slams into a layer of tungsten in one of the tracking towers that compose the LAT, it creates mass (m) in the form of a pair of subatomic particles,  an electron and its antimatter counterpart, a positron. Several layers of high-precision silicon detectors track the particles as they move through the instrument. The direction of the incoming gamma ray is determined by projecting the particle paths backward. The particles travel through the trackers until they reach a separate detector called a calorimeter, which absorbs and measures their energies. The LAT produces gamma-ray images of astronomical objects, while also determining the energy of each detected gamma ray. || ",
            "hits": 117
        },
        {
            "id": 10767,
            "url": "https://svs.gsfc.nasa.gov/10767/",
            "result_type": "Produced Video",
            "release_date": "2011-05-11T12:00:00-04:00",
            "title": "NASA's Fermi Spots 'Superflares' in the Crab Nebula",
            "description": "The famous Crab Nebula supernova remnant has erupted in an enormous flare five times more powerful than any previously seen from the object. The outburst was first detected by NASA's Fermi Gamma-ray Space Telescope on April 12 and lasted six days.The nebula, which is the wreckage of an exploded star whose light reached Earth in 1054, is one of the most studied objects in the sky. At the heart of an expanding gas cloud lies what's left of the original star's core, a superdense neutron star that spins 30 times a second. With each rotation, the star swings intense beams of radiation toward Earth, creating the pulsed emission characteristic of spinning neutron stars (also known as pulsars). Apart from these pulses, astrophysicists regarded the Crab Nebula to be a virtually constant source of high-energy radiation. But in January, scientists associated with several orbiting observatories — including NASA's Fermi, Swift and Rossi X-ray Timing Explorer — reported long-term brightness changes at X-ray energies.Scientists think that the flares occur as the intense magnetic field near the pulsar undergoes sudden restructuring. Such changes can accelerate particles like electrons to velocities near the speed of light. As these high-speed electrons interact with the magnetic field, they emit gamma rays in a process known as synchrotron emission.To account for the observed emission, scientists say that the electrons must have energies 100 times greater than can be achieved in any particle accelerator on Earth. This makes them the highest-energy electrons known to be associated with any cosmic source.Based on the rise and fall of gamma rays during the April outbursts, scientists estimate that the size of the emitting region must be comparable in size to the solar system. If circular, the region must be smaller than roughly twice Pluto's average distance from the sun.For more Crab Nebula media go to #10708. || ",
            "hits": 67
        },
        {
            "id": 10706,
            "url": "https://svs.gsfc.nasa.gov/10706/",
            "result_type": "Produced Video",
            "release_date": "2011-01-10T16:00:00-05:00",
            "title": "Terrestrial Gamma-ray Flashes Create Antimatter",
            "description": "NASA's Fermi Gamma-ray Space Telescope has detected beams of antimatter launched by thunderstorms. Acting like enormous particle accelerators, the storms can emit gamma-ray flashes, called TGFs, and high-energy electrons and positrons. Scientists now think that most TGFs produce particle beams and antimatter.For additional animations showing bremsstrahlung and pair production gamma ray reactions, go here.For more visualizations showing Fermi's TGF detections, go to#3747, #3748, and #3756.For animations of the Fermi spacecraft and matter/antimatter, go to#10707 and #10651. || ",
            "hits": 261
        },
        {
            "id": 10707,
            "url": "https://svs.gsfc.nasa.gov/10707/",
            "result_type": "Produced Video",
            "release_date": "2011-01-10T16:00:00-05:00",
            "title": "Fermi Terrestrial Gamma-ray Flash (TGF) Animations",
            "description": "NASA's Fermi Gamma-ray Space Telescope has detected beams of antimatter launched by thunderstorms. Acting like enormous particle accelerators, the storms can emit gamma-ray flashes, called TGFs, and high-energy electrons and positrons. Scientists now think that most TGFs produce particle beams and antimatter. || ",
            "hits": 121
        },
        {
            "id": 10688,
            "url": "https://svs.gsfc.nasa.gov/10688/",
            "result_type": "Produced Video",
            "release_date": "2010-11-09T13:00:00-05:00",
            "title": "Fermi discovers giant gamma-ray bubbles in the Milky Way",
            "description": "Using data from NASA's Fermi Gamma-ray Space Telescope, scientists have recently discovered a gigantic, mysterious structure in our galaxy. This never-before-seen feature looks like a pair of bubbles extending above and below our galaxy's center. But these enormous gamma-ray emitting lobes aren't immediately visible in the Fermi all-sky map. However, by processing the data, a group of scientists was able to bring these unexpected structures into sharp relief.  Each lobe is 25,000 light-years tall and the whole structure may be only a few million years old. Within the bubbles, extremely energetic electrons are interacting with lower-energy light to create gamma rays, but right now, no one knows the source of these electrons.Are the bubbles remnants of a massive burst of star formation? Leftovers from an eruption by the supermassive black hole at our galaxy's center? Or or did these forces work in tandem to produce them? Scientists aren't sure yet, but the more they learn about this amazing structure, the better we'll understand the Milky Way.For an animation that shows the inverse Compton scattering responsible for the gamma rays, go to #10690.For an animation that shows an artist's interpretation of the Milky Way galaxy and the lobes, go to#10691. || ",
            "hits": 250
        },
        {
            "id": 10566,
            "url": "https://svs.gsfc.nasa.gov/10566/",
            "result_type": "Produced Video",
            "release_date": "2010-02-13T00:00:00-05:00",
            "title": "Fermi Explores Supernova Remnants",
            "description": "Fermi's Large Area Telescope (LAT) resolved gamma rays with energies a billion times greater than that of visible light from supernova remnants of different ages and in different environments. W51C, W44 and IC 443 are middle-aged remnants between 4,000 and 30,000 years old. The youngest remnant, Cassiopeia A, is only 330 years old and appears to the LAT as a point source. The images bring astronomers a step closer to understanding the source of some of the universe's most energetic particles — cosmic rays. The emissions are likely the result of accelerated protons interacting with nearby gas clouds, but other possibilities have not been eliminated. Astrophysicists believe that supernova remnants are the galaxy's best candidate sites for cosmic-ray acceleration. These observations provide further validation to the notion that supernova remnants act as enormous accelerators for cosmic particles. || ",
            "hits": 56
        },
        {
            "id": 10520,
            "url": "https://svs.gsfc.nasa.gov/10520/",
            "result_type": "Produced Video",
            "release_date": "2010-01-05T14:30:00-05:00",
            "title": "New Millisecond Radio Pulsars Found in Fermi LAT Unidentified Sources",
            "description": "Radio searches netted 17 new millisecond pulsars by examining the Fermi Gamma-ray Space Telescope's list of unidentified sources. Colored circles indicate the positions of the new pulsars on the Fermi one-year all-sky map. || ",
            "hits": 69
        },
        {
            "id": 10540,
            "url": "https://svs.gsfc.nasa.gov/10540/",
            "result_type": "Produced Video",
            "release_date": "2009-12-09T10:00:00-05:00",
            "title": "Brightest-ever Flare From Blazar 3C 454.3",
            "description": "The blazar 3C 454.3, which lies 7.2 billion light-years away in the constellation Pegasus, underwent a series of intense flares in the fall of 2009. By December, it had become the brightest persistent gamma-ray source in the sky — more than ten times brighter than it was in the summer. These all-sky images, which record the numbers of high-energy gamma-rays captured by Fermi's Large Area Telescope on Dec. 3 and Nov. 18, clearly show the change. Typically, the Vela pulsar, which lies only 1,000 light-years away, is the sky's brightest persistent source of gamma rays. Blazar 3C 454.3, which is millions of times farther away, rose to twice Vela's brightness. Astronomers suspect the activity is driven by some change within the galaxy's black-hole-powered particle jet, but they do not understand the details. || ",
            "hits": 86
        },
        {
            "id": 10489,
            "url": "https://svs.gsfc.nasa.gov/10489/",
            "result_type": "Produced Video",
            "release_date": "2009-10-28T01:45:00-04:00",
            "title": "Gamma-ray Burst Photon Delay as Expected by Quantum Gravity",
            "description": "In this illustration, one photon (purple) carries a million times the energy of another (yellow). Some theorists predict travel delays for higher-energy photons, which interact more strongly with the proposed frothy nature of space-time. Yet Fermi data on two photons from a gamma-ray burst fail to show this effect, eliminating some approaches to a new theory of gravity. || ",
            "hits": 70
        },
        {
            "id": 10505,
            "url": "https://svs.gsfc.nasa.gov/10505/",
            "result_type": "Produced Video",
            "release_date": "2009-10-28T01:45:00-04:00",
            "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. || ",
            "hits": 32
        },
        {
            "id": 10507,
            "url": "https://svs.gsfc.nasa.gov/10507/",
            "result_type": "Produced Video",
            "release_date": "2009-10-28T01:45:00-04:00",
            "title": "Gamma-Rays from High-Mass X-Ray Binaries",
            "description": "In its first year, NASA's Fermi Gamma-ray Space Telescope discovered GeV (billions of electron volts) intensity variations revealing orbital motion in high-mass X-ray binaries (HMXBs). These are systems where a compact companion, such as a neutron star or a black hole, rapidly orbits a hot, young, massive star. The first examples include LSI +61 303, which sports a 26-day orbital period, and LS 5039 (3.9 days). This animation shows such a system. When the compact object lies far from its host star, TeV (trillions of electron volts) gamma-rays (white) are seen by ground-based gamma-ray observatories. But, as the object plunges closer to the star, the TeV emission is quenched and GeV emission turns on. Interactions by accelerated particles from the compact source with gas encircling the star — or in some systems, the star's light itself — is thought to be responsible for this change. || ",
            "hits": 55
        },
        {
            "id": 10508,
            "url": "https://svs.gsfc.nasa.gov/10508/",
            "result_type": "Produced Video",
            "release_date": "2009-10-28T01:45:00-04:00",
            "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. || ",
            "hits": 65
        },
        {
            "id": 10510,
            "url": "https://svs.gsfc.nasa.gov/10510/",
            "result_type": "Produced Video",
            "release_date": "2009-10-28T00:00:00-04:00",
            "title": "Einstein's Cosmic Speed Limit",
            "description": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here. || Einsteins_Cosmic_Speed_Limit_512x288_web.png (320x180) [223.5 KB] || Einsteins_Cosmic_Speed_Limit_512x288_thm.png (80x40) [16.5 KB] || Einsteins_Cosmic_Speed_Limit_Thumbnail.jpg (346x260) [107.4 KB] || Einsteins_Cosmic_Speed_Limit_AppleTV.webmhd.webm (960x540) [82.4 MB] || Einsteins_Cosmic_Speed_Limit_AppleTV.m4v (960x540) [208.4 MB] || Einsteins_Cosmic_Speed_Limit_1280x720_H264.mov (1280x720) [433.5 MB] || Einsteins_Cosmic_Speed_Limit_1280x720_ProRes.mov (1280x720) [5.2 GB] || Einsteins_Cosmic_Speed_Limit_640x480_ipod.m4v (640x360) [68.6 MB] || Einsteins_Cosmic_Speed_Limit_512x288.mpg (512x288) [38.3 MB] || Einsteins_Cosmic_Speed_Limit_320x240.mp4 (320x180) [26.5 MB] || GSFC_20091029_EinsteinsCosmicSpeedLimit.wmv (346x236) [38.4 MB] || ",
            "hits": 87
        },
        {
            "id": 10426,
            "url": "https://svs.gsfc.nasa.gov/10426/",
            "result_type": "Produced Video",
            "release_date": "2009-07-02T13:50:00-04:00",
            "title": "Vela Pulsar in Gamma Rays",
            "description": "This movie shows pulsed gamma rays from the Vela pulsar as constructed from photons detected by Fermi's Large Area Telescope. The Vela pulsar, which spins 11 times a second, is the brightest persistent source of gamma rays in the sky. The movie includes data from August 4 to Sept. 15, 2008. The bluer color in the latter part of the pulse indicates the presence of gamma rays with energies exceeding a billion electron volts (1 GeV). For comparison, visible light has energies between two and three electron volts. Red indicates gamma rays with energies less than 300 million electron volts (MeV); green, gamma rays between 300 MeV and 1 GeV; and blue shows gamma rays greater than 1 GeV. The movie frame is 30 degrees across. The background, which shows diffuse gamma-ray emission from the Milky Way, is about 15 times brighter here than it actually is. || ",
            "hits": 74
        },
        {
            "id": 10407,
            "url": "https://svs.gsfc.nasa.gov/10407/",
            "result_type": "Produced Video",
            "release_date": "2009-04-03T14:00:00-04:00",
            "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. || ",
            "hits": 70
        },
        {
            "id": 10344,
            "url": "https://svs.gsfc.nasa.gov/10344/",
            "result_type": "Produced Video",
            "release_date": "2009-02-19T14:00:00-05:00",
            "title": "Fermi LAT movie of Gamma-ray Burst (GRB) 080916C",
            "description": "This movie compresses about 8 minutes of Fermi LAT observations of GRB 080916C into 6 seconds. Colored dots represent gamma rays of different energies. Visible light has energy between about 2 and 3 electron volts (eV). The blue dots represent lower-energy gamma rays (less than 100 million eV); green, moderate energies (100 million to 1 billion eV); and red, the highest energies (more than 1 billion eV). || ",
            "hits": 148
        },
        {
            "id": 10361,
            "url": "https://svs.gsfc.nasa.gov/10361/",
            "result_type": "Produced Video",
            "release_date": "2009-01-09T10:00:00-05:00",
            "title": "Pulsars Emit Gamma-rays from Equator",
            "description": "A pulsar is a rapidly spinning and highly magnetized neutron star, the crushed core left behind when a massive sun explodes. Most were found through their pulses at radio wavelengths, which are thought to be caused by narrow, lighthouse-like beams emanating from the star's magnetic poles. When it comes to gamma-rays, pulsars are no longer lighthouses. A new class of gamma-ray-only pulsars shows that the gamma rays must form in a broader region than the lighthouse-like radio beam. Astronomers now believe the pulsed gamma rays arise far above the neutron star. || ",
            "hits": 83
        },
        {
            "id": 10357,
            "url": "https://svs.gsfc.nasa.gov/10357/",
            "result_type": "Produced Video",
            "release_date": "2008-12-21T23:00:00-05:00",
            "title": "GLASTcast Episode 6: 2008 Mission Update",
            "description": "The GLAST mission launched on June 11, 2008 and has been returning remarkable and revolutionary discoveries ever since. Recently renamed to the Fermi Space Telescope, after Nobel Prize winner Enrico Fermi, the mission is expected to discover dozens of new pulsars within its first year alone. The telescope is also giving us new insights into gamma-ray bursts and the massive jets that erupt from distant galaxies. Stay tuned — the mission of NASA's Fermi telescope is just getting started. || ",
            "hits": 45
        },
        {
            "id": 10347,
            "url": "https://svs.gsfc.nasa.gov/10347/",
            "result_type": "Produced Video",
            "release_date": "2008-08-26T00:00:00-04:00",
            "title": "GLAST First Light All Sky Map",
            "description": "NASA's newest observatory, the Gamma-Ray Large Area Space Telescope (GLAST), has begun its mission of exploring the universe in high-energy gamma rays. The spacecraft and its revolutionary instruments passed their orbital checkout with flying colors. NASA announced today that GLAST has been renamed the Fermi Gamma-ray Space Telescope. The new name honors Prof. Enrico Fermi (1901 - 1954), a pioneer in high-energy physics. Scientists expect Fermi will discover many new pulsars in our own galaxy, reveal powerful processes near supermassive black holes at the cores of thousands of active galaxies across, and enable a search for signs of new physical laws. || ",
            "hits": 135
        },
        {
            "id": 10345,
            "url": "https://svs.gsfc.nasa.gov/10345/",
            "result_type": "Produced Video",
            "release_date": "2008-08-25T00:00:00-04:00",
            "title": "GLASTcast in HD for Apple TV and iTunes",
            "description": "The Universe is home to numerous exotic and beautiful phenomena, some of which can generate inconceivable amounts of energy. GLAST will open a new window on this high-energy world. With GLAST, astronomers will have a superior tool to study how black holes, notorious for pulling matter in, can accelerate jets of gas outward at fantastic speeds. Physicists will be able to search for signals of new fundamental processes that are inaccessible in ground-based accelerators and observatories. GLAST's spectacular high-energy gamma-ray 'eyeglasses' will reveal hidden wonders, opening our minds to new possibilities and discoveries, expanding our understanding of the Universe and our place in it. || ",
            "hits": 41
        },
        {
            "id": 10323,
            "url": "https://svs.gsfc.nasa.gov/10323/",
            "result_type": "Produced Video",
            "release_date": "2008-08-05T12:00:00-04:00",
            "title": "GLASTCast Episode 3 - Swift and GLAST",
            "description": "NASA's GLAST mission is an astrophysics and particle physics partnership, developed in collaboration with the U.S. Department of Energy, along with important contributions from academic institutions and partners in France, Germany, Italy, Japan, Sweden, and the U.S.  What's the difference between the Swift and GLAST satellites? Both missions look at gamma-ray bursts (GRBs), but in different ways. Swift can rapidly and precisely determine the locations of GRBs and observe their afterglows at X-ray, ultraviolet, and optical wavelengths. GLAST will provide exquisite observations of the burst over the gamma ray spectrum, giving scientists their first complete view of the total energy released in these extraordinary events. Beyond GRB science, GLAST is a multipurpose observatory that will study a broad range of cosmic phenomena. Swift is also a multipurpose observatory, but was built primarily to study GRBs.  Interviews with (in order of appearance):  David Thompson - GLAST Deputy Project Scientist, NASA Goddard Charles \"Chip\" Meegan - GLAST Burst Monitor (GBM) Principal Investigator, NASA Marshall Lynn Cominsky - GLAST Astrophysicist and Education and Public Outreach Lead, Sonoma State University Neil Gehrels - GLAST Deputy Project Scientist, NASA Goddard Steve Ritz - GLAST Project Scientist, NASA Goddard Alan Marscher - Professor of Astronomy, Boston University || ",
            "hits": 23
        },
        {
            "id": 10324,
            "url": "https://svs.gsfc.nasa.gov/10324/",
            "result_type": "Produced Video",
            "release_date": "2008-08-05T12:00:00-04:00",
            "title": "GLASTcast Episode 4: Launching a Spacecraft",
            "description": "NASA's GLAST mission is an astrophysics and particle physics partnership, developed in collaboration with the U.S. Department of Energy, along with important contributions from academic institutions and partners in France, Germany, Italy, Japan, Sweden, and the U.S.  The GLAST satellite will launch in 2008 from Cape Canaveral Air Station, on Florida's east coast. GLAST will be carried on a Delta II Heavy launch vehicle, with 9 solid rocket boosters. GLAST is the first imaging gamma-ray observatory to survey the entire sky every day and with high sensitivity. It will give scientists a unique opportunity to learn about the ever-changing Universe at extreme energies.  Interviews with (in order of appearance):  Peter Michaelson - Large Area Telescope (LAT) Principal Investigator, Stanford University Lynn Cominsky - GLAST Astrophysicist and Education and Public Outreach Lead, Sonoma State University David Thompson - GLAST Deputy Project Scientist, NASA Goddard Kevin Grady - GLAST Project Manager, NASA Goddard Neil Johnson - Large Area Telescope (LAT) Deputy Principal Investigator, US Naval Research Lab Jonathan Ormes - Large Area Telescope (LAT) Senior Scientist Advisory Committee, University of Denver Charles \"Chip\" Meegan - GLAST Burst Monitor (GBM) Principal Investigator, NASA Marshall Luke Drury - Professor of Astronomy, Dublin Institute for Advanced Studies Per Carlson - Professor of Elementary Particle Physics, Manne Siegbahn Laboratory Isabelle Grenier - Principal Investigator of the GLAST French contribution, French Atomic Energy Commission || ",
            "hits": 21
        },
        {
            "id": 10325,
            "url": "https://svs.gsfc.nasa.gov/10325/",
            "result_type": "Produced Video",
            "release_date": "2008-08-05T01:00:00-04:00",
            "title": "GLASTcast Episode 5: Meet the U.S. Team",
            "description": "NASA's GLAST mission is an astrophysics and particle physics partnership, developed in collaboration with the U.S. Department of Energy, along with important contributions from academic institutions and partners in France, Germany, Italy, Japan, Sweden, and the U.S.  This video introduces only a small fraction of the hundreds of U.S. and international GLAST team members. To meet more of the team go to: www.nasa.gov/glast.  Interviews with (in order of appearance):  Bill Atwood - GLAST Co-Creator, Santa Cruz Institute of Particle Physics, University of California, Santa Cruz David Thompson - GLAST Deputy Project Scientist, NASA Goddard Julie McEnery - GLAST Deputy Project Scientist, NASA Goddard Steve Ritz - GLAST Project Scientist, NASA Goddard Neil Gehrels - GLAST Deputy Project Scientist, NASA Goddard Peter Michaelson - Large Area Telescope (LAT) Principal Investigator, Stanford University Kevin Grady - GLAST Project Manager, NASA Goddard Charles \"Chip\" Meegan - GLAST Burst Monitor (GBM) Principal Investigator, NASA Marshall || ",
            "hits": 26
        },
        {
            "id": 10322,
            "url": "https://svs.gsfc.nasa.gov/10322/",
            "result_type": "Produced Video",
            "release_date": "2008-07-30T00:00:00-04:00",
            "title": "GLAST Soundbites",
            "description": "Selected soundbites with Steve Ritz, GLAST Project Scientist; Peter Michelson, LAT Principal Investigator; Charles 'Chip' Meegan, GBM Principal Investigator. NASA's GLAST mission is an astrophysics partnership, developed in collaboration with the U.S. Department of Energy along with important contributions from academic institutions and partners in France, Germany, Italy, Japan, Sweden, and the U.S. || ",
            "hits": 28
        },
        {
            "id": 20170,
            "url": "https://svs.gsfc.nasa.gov/20170/",
            "result_type": "Animation",
            "release_date": "2008-07-23T00:00:00-04:00",
            "title": "GLAST - Print Still Images - Wallpaper",
            "description": "Stills from the animation series, these 300dpi .tiff files are suitable for framing. || Print1 || glast-PRINT1.jpg (2096x1179) [893.9 KB] || glast-PRINT1_web.png (320x180) [254.2 KB] || glast-PRINT1_thm.png (80x40) [19.6 KB] || glast-PRINT1.tif (2096x1179) [9.5 MB] || Print2 || glast-PRINT2.jpg (2096x1179) [937.6 KB] || glast-PRINT2_web.png (320x180) [313.4 KB] || glast-PRINT2.tif (2096x1179) [9.5 MB] || ",
            "hits": 9
        },
        {
            "id": 10250,
            "url": "https://svs.gsfc.nasa.gov/10250/",
            "result_type": "Produced Video",
            "release_date": "2008-06-03T00:00:00-04:00",
            "title": "GLASTcast for iTunes",
            "description": "The GLAST mission launched on June 11, 2008 and has been returning remarkable and revolutionary discoveries ever since. Recently renamed to the Fermi Space Telescope, after Nobel Prize winner Enrico Fermi, the mission is expected to discover dozens of new pulsars within the first year alone. The telescope is also giving us new insights into gamma-ray bursts and the massive jets that erupt from distant galaxies. Stay tuned — the mission of NASA's Fermi telescope is just getting started. || ",
            "hits": 33
        },
        {
            "id": 10251,
            "url": "https://svs.gsfc.nasa.gov/10251/",
            "result_type": "Produced Video",
            "release_date": "2008-05-31T00:00:00-04:00",
            "title": "GLAST Prelude, for Brass Quintet, Op.12",
            "description": "NASA's GLAST mission is an astrophysics and particle physics partnership, developed in collaboration with the U.S. Department of Energy, along with important contributions from academic institiutions and partners in France, Germany, Italy, Japan, Sweden, and the U.S. Music composed by Nolan Gasser, © 2008 Music performed by the American Brass Quintet || ",
            "hits": 34
        },
        {
            "id": 10247,
            "url": "https://svs.gsfc.nasa.gov/10247/",
            "result_type": "Produced Video",
            "release_date": "2008-05-29T00:00:00-04:00",
            "title": "GLASTcast Episode 1:  What is GLAST?",
            "description": "NASA's GLAST mission is an astrophysics and particle physics partnership, developed in collaboration with the U.S. Department of Energy, along with important contributions from academic institutions and partners in France, Germany, Italy, Japan, Sweden, and the U.S.  The Universe is home to numerous exotic and beautiful phenomena, some of which can generate inconceivable amounts of energy. GLAST will open a new window on this high-energy world. With GLAST, astronomers will have a superior tool to study how black holes, notorious for pulling matter in, can accelerate jets of gas outward at fantastic speeds. Physicists will be able to search for signals of new fundamental processes that are inaccessible in ground-based accelerators and observatories. GLAST's spectacular high-energy gamma-ray \"eyeglasses\" will reveal hidden wonders, opening our minds to new possibilities and discoveries, expanding our understanding of the Universe and our place in it.  Interviews with (in order of appearance):  Steve Ritz - GLAST Project Scientist, NASA Goddard Peter Michaelson - Large Area Telescope (LAT) Principal Investigator, Stanford University Diego Torres - Large Area Telescope (LAT) Scientist, University of Barcelona Neil Gehrels - GLAST Deputy Project Scientist, NASA Goddard David Thompson - GLAST Deputy Project Scientist, NASA Goddard Luke Drury - Professor of Astronomy, Dublin Institute for Advanced Studies Valerie Connaughton - GLAST Burst Monitor (GBM) Team, NASA Marshall/University of Alabama Martin Pohl - GLAST Interdisciplinary Scientist, Iowa State University Per Carlson - Professor of Elementary Particle Physics, Manne Siegbahn Laboratory Charles \"Chip\" Meegan - GLAST Burst Monitor (GBM) Principal Investigator, NASA Marshall Alan Marscher - Professor of Astronomy, Boston University Julie McEnery - GLAST Deputy Project Scientist, NASA Goddard || ",
            "hits": 22
        },
        {
            "id": 10248,
            "url": "https://svs.gsfc.nasa.gov/10248/",
            "result_type": "Produced Video",
            "release_date": "2008-05-23T00:00:00-04:00",
            "title": "GLASTcast Episode 2:  What are Gamma Rays?",
            "description": "NASA's GLAST mission is an astrophysics and particle physics partnership, developed in collaboration with the U.S. Department of Energy, along with important contributions from academic institutions and partners in France, Germany, Italy, Japan, Sweden, and the U.S.  Somewhere out in the vast depths of space, a giant star explodes with the power of millions of suns. As the star blows up, a black hole forms at its center. The black hole blows two blowtorches in opposite directions, in narrow jets of gamma rays. NASA's Gamma-ray Large Area Space Telescope, or GLAST, will catch about 200 of these explosions, known as gamma-ray bursts, each year. GLAST's detailed observations may give astronomers the clues they need to unravel the mystery of what exactly produces these gamma-ray bursts, which are the brightest explosions in the universe since the Big Bang.  Interviews with (in order of appearance):  Phil Plait - Astronomer, Bad Astronomy David Thompson - GLAST Deputy Project Scientist, NASA Goddard Valerie Connaughton - GLAST Burst Monitor (GBM) Team, NASA Marshall/University of Alabama Neil Gehrels - GLAST Deputy Project Scientist, NASA Goddard Isabelle Grenier - Principal Investigator of the GLAST French contribution, French Atomic Energy Commission Peter Michaelson - Large Area Telescope (LAT) Principal Investigator, Stanford University Charles \"Chip\" Meegan - GLAST Burst Monitor (GBM) Principal Investigator, NASA Marshall Martin Pohl - GLAST Interdisciplinary Scientist, Iowa State University Steve Ritz - GLAST Project Scientist, NASA Goddard || ",
            "hits": 62
        },
        {
            "id": 20139,
            "url": "https://svs.gsfc.nasa.gov/20139/",
            "result_type": "Animation",
            "release_date": "2008-05-22T00:00:00-04:00",
            "title": "Gamma Ray Burst",
            "description": "This animation was used to illustrate a gamma ray burst that NASA's SWIFT might see. || Gamma Ray Burst || GRBHD039100377_print.jpg (1024x576) [43.9 KB] || GRBHD0391_web.png (320x180) [267.8 KB] || GRBHD0391_thm.png (80x40) [15.0 KB] || 1280x720_16x9_60p (1280x720) [32.0 KB] || grb_hd_720p.m2v (1280x720) [20.5 MB] || grb_hd_720p.webmhd.webm (960x540) [2.0 MB] || a010245_grb_hd_720p.mp4 (640x360) [1.6 MB] || grb_hd_512x288.m1v (512x288) [2.9 MB] || ",
            "hits": 115
        },
        {
            "id": 20135,
            "url": "https://svs.gsfc.nasa.gov/20135/",
            "result_type": "Animation",
            "release_date": "2008-04-16T00:00:00-04:00",
            "title": "Gamma Rays in Active Galactic Nuclei",
            "description": "This animation shows how gamma rays possibly form in Active Galactic Nuclei. || ",
            "hits": 147
        },
        {
            "id": 20136,
            "url": "https://svs.gsfc.nasa.gov/20136/",
            "result_type": "Animation",
            "release_date": "2008-04-16T00:00:00-04:00",
            "title": "Gamma Rays in Pulsars",
            "description": "This animation takes us into a spinning pulsar, with its strong magnetic field rotating along with it. Clouds of charged particles move along the field lines and their gamma-rays are beamed like a lighthouse beacon by the magnetic fields. As our line of sight moves into the beam, we see the pulsations once every rotation of the neutron star. || ",
            "hits": 113
        },
        {
            "id": 10165,
            "url": "https://svs.gsfc.nasa.gov/10165/",
            "result_type": "B-Roll",
            "release_date": "2007-09-17T00:00:00-04:00",
            "title": "GLAST LAT Testing - B-Roll",
            "description": "The GLAST LAT (Large Area Telescope) was tested extensively during the summer of 2006 at the U.S. Naval Research Laboratory in Washington, DC. The NRL also contributed to the GLAST project by managing the construction of the LAT Calorimeter. || ",
            "hits": 29
        },
        {
            "id": 10169,
            "url": "https://svs.gsfc.nasa.gov/10169/",
            "result_type": "B-Roll",
            "release_date": "2007-09-17T00:00:00-04:00",
            "title": "GLAST LAT Integration - B-Roll",
            "description": "In fall of 2006, the LAT was shipped to the General Dynamics facility in Arizona for integration onto the spacecraft bus. The General Dynamics spacecraft bus provides the power, data, and pointing resources that will enable the LAT to perform its survey of the Universe. Subsequent to the mechanical integration, the command, data, and power interfaces between the instrument and the spacecraft were tested rigorously to insure the compatibility of this spaceflight hardware that had been manufactured all around the globe. || ",
            "hits": 23
        },
        {
            "id": 10172,
            "url": "https://svs.gsfc.nasa.gov/10172/",
            "result_type": "Produced Video",
            "release_date": "2007-09-17T00:00:00-04:00",
            "title": "GLAST Promo Video",
            "description": "NASA's Gamma-ray Large Area Space Telescope (GLAST) is a powerful space observatory that will open a wide window on the universe. Gamma rays are the highest-energy form of light and the gamma-ray sky is spectacularly different from the one we perceive with our own eyes. With a huge leap in all key capabilities, GLAST data will enable scientists to answer persistent questions across a broad range of topics, including supermassive black-hole systems, pulsars, the origina of cosmic rays, and searches for signals new physics. NASA's GLAST mission is an astrophysics and particle physics partnership, developed in collaboration with the U.S. Department of Energy, along with important contributions from academic institutions and partners in France, Germany, Italy, Japan, Sweden, and the U.S. || ",
            "hits": 31
        },
        {
            "id": 20119,
            "url": "https://svs.gsfc.nasa.gov/20119/",
            "result_type": "Animation",
            "release_date": "2007-09-14T00:00:00-04:00",
            "title": "The GLAST (Fermi) Spacecraft in Orbit",
            "description": "GLAST will be launched into a circular orbit around the Earth at an altitude of about 560 km (350 miles). At that altitude, the observatory will circle Earth every 90 minutes. In sky-survey mode, GLAST will be able to view the entire sky in just two orbits, or about 3 hours. Because gamma rays in the GLAST's energy band are unable to penetrate the Earth's atmostphere, it is essential that GLAST perform its observations from space. || ",
            "hits": 46
        },
        {
            "id": 20120,
            "url": "https://svs.gsfc.nasa.gov/20120/",
            "result_type": "Animation",
            "release_date": "2007-09-14T00:00:00-04:00",
            "title": "360 Degrees of GLAST",
            "description": "GLAST will carry two instruments: the Large Area Telescope (LAT) and the GLAST Burst Monitor (GBM). The LAT is GLAST's primary instrument and consists of four components: the Tracker, the Calorimeter, the Anticoincidence Detector (ACD), and the Data Acquisition System (DAQ). These instrument components working together will detect gamma rays by using Einstein's famous equation (E=mc(squared) in a technique known as pair production. The GLAST Burst Monitor is a complementary instrument and consists of low-energy detectors, high-energy detectors, and data processing unit. The GBM can see all directions at once, except for the area where Earth blocks its view. When the GBM detects a bright gamma-ray burst, it immediately sends a signal to the LAT to observe that area of the sky. || ",
            "hits": 41
        },
        {
            "id": 20121,
            "url": "https://svs.gsfc.nasa.gov/20121/",
            "result_type": "Animation",
            "release_date": "2007-09-14T00:00:00-04:00",
            "title": "GLAST's New Window on the Universe",
            "description": "The Universe is home to numerous extoic and beautiful phenomena, some of which can generate inconceiveable amounts of energy. GLAST (Gamma-ray Large Area Telescope) will open this high-energy world as the first imaging gamma-ray observatory to survey the entire sky every day and with high sensitivity. Astronomers will gain a superior tool to study how black holes, notorious for pulling matter in, can accelerate jets of gas outward at fantastic speeds. Physicists will be able to search for signals of new fundamental processes that are inaccessable in ground-based accelerators and observatories. And scientists will have a unique opportunity to learn about the every-changing Universe at extreme energies. || ",
            "hits": 47
        },
        {
            "id": 20123,
            "url": "https://svs.gsfc.nasa.gov/20123/",
            "result_type": "Animation",
            "release_date": "2007-09-14T00:00:00-04:00",
            "title": "GLAST Launch and Deployment",
            "description": "GLAST's launch is scheduled for early 2008 from Cape Canaveral Air Station on Florida's eastern coast. GLAST will be carried on a Delta II Heavy launch vehicle, with 9 solid rocket boosters. The solids are actually from the Delta III series (hence the term 'heavy'), mounted on a Delta II. It has a 10-foot fairing and two stages. Stowed in the launch vehicle, the spacecraft is 9.2 feet (2.8 meters) high by 8.2 feet (2.5 meters) in diameter. Once deployed, GLAST becomes a little bit taller and much wider (15 meters) with the Ku-band antenna deployed and the solar arrays extended. || ",
            "hits": 34
        },
        {
            "id": 3439,
            "url": "https://svs.gsfc.nasa.gov/3439/",
            "result_type": "Visualization",
            "release_date": "2007-09-13T00:00:00-04:00",
            "title": "Simulations of the Gamma-Ray Sky",
            "description": "The Gamma-Ray Large Area Space Telescope (GLAST) will observe the sky in gamma-rays with energies between 10 million electron volts (MeV) to 300 billion electron volts (GeV) (a photon of visible light is roughly 2 electron volts). At these energies, the detectors will receive roughly 2 photons every second. At these energies, the objects visible will be active galaxies, quasars, pulsars, and gamma-ray bursts. This visualization is generated from one year of simulated photon event-lists using known sources. These event lists are used for testing the various data analysis software being developed for the project. Due to the extremely low event rate, it takes about one week of event accumulation to see structure in the sky. To generate the 600+ frames of this visualization, the event lists were box-car averaged for a duration of one week for each frame, and each frame shifted 50,000 seconds in time from the previous frame. The low angular resolution of gamma-ray detectors makes point sources appear spread out in the sky. In these maps, the color of each pixel represents the number of photons accumulated in that pixel (over an energy range of 10MeV-300GeV). Horizontally, across the center of the map, is the diffuse emission from the plane of our own Milky Way galaxy. The images are projected in galactic coordinates with a plate carrée projection so there is significant distortion with increasing latitude above the galactic disk. This emission in the galactic plane is created by pulsars and supernova remnants. Located away from this plane is emission from active galaxies and high-velocity pulsars. Occasionally, a bright spot appears which can be a gamma-ray burst or quasar in an active state. || ",
            "hits": 75
        },
        {
            "id": 20113,
            "url": "https://svs.gsfc.nasa.gov/20113/",
            "result_type": "Animation",
            "release_date": "2007-09-07T00:00:00-04:00",
            "title": "Gamma Ray Creation",
            "description": "Gamma rays are the highest-energy forms of light in the electromagnetic spectrum and they can have over a billion times the energy of the type of light visible to the human eye. Gamma rays can be created in several different ways: a high-energy particle can collide with another particle, a particle can collide and annihilate with its anti-particle, an element can undergo radioactive decay, or a charged particle can be accelerated. In this animation, we see a high-energy photon collide with a free electron, which causes the creation of a gamma-ray. || ",
            "hits": 235
        }
    ]
}