{ "count": 13, "next": null, "previous": null, "results": [ { "id": 14301, "url": "https://svs.gsfc.nasa.gov/14301/", "result_type": "Produced Video", "release_date": "2023-03-08T10:00:00-05:00", "title": "Millions of Galaxies Emerge in New Simulated Images From NASA's Roman", "description": "This video begins by showing the most distant galaxies in the simulated deep field image in red. As it zooms out, layers of nearer (yellow and white) galaxies are added to the frame. By studying different cosmic epochs, Roman will be able to trace the universe's expansion history, study how galaxies developed over time, and much more.Credit: Caltech-IPAC/R. Hurt and M. Troxel || Roman_Zoom_still.jpg (1920x1080) [515.9 KB] || Roman_Zoom_still_searchweb.png (320x180) [106.4 KB] || Roman_Zoom_still_thm.png (80x40) [6.6 KB] || Roman_Zoom-HD2K.mp4 (1920x1080) [25.3 MB] || Roman_Zoom-HD2K.webm (1920x1080) [2.7 MB] || ", "hits": 72 }, { "id": 4851, "url": "https://svs.gsfc.nasa.gov/4851/", "result_type": "Visualization", "release_date": "2020-09-09T13:15:00-04:00", "title": "Deep Star Maps 2020", "description": "The star map in celestial coordinates, at five different resolutions. The map is centered at 0h right ascension, and r.a. increases to the left. || starmap_2020_4k_print.jpg (1024x512) [41.8 KB] || starmap_2020_4k_searchweb.png (320x180) [53.9 KB] || starmap_2020_4k_thm.png (80x40) [5.5 KB] || starmap_2020_4k.exr (4096x2048) [34.3 MB] || starmap_2020_8k.exr (8192x4096) [124.5 MB] || starmap_2020_16k.exr (16384x8192) [422.9 MB] || starmap_2020_32k.exr (32768x16384) [1.4 GB] || starmap_2020_64k.exr (65536x32768) [3.8 GB] || ", "hits": 3701 }, { "id": 40409, "url": "https://svs.gsfc.nasa.gov/gallery/fermi-stills/", "result_type": "Gallery", "release_date": "2020-01-22T00:00:00-05:00", "title": "Fermi Stills", "description": "A collection of Fermi-related still images, illustrations, graphics and short clips.", "hits": 291 }, { "id": 13209, "url": "https://svs.gsfc.nasa.gov/13209/", "result_type": "Produced Video", "release_date": "2019-12-19T12:00:00-05:00", "title": "NASA’s Fermi Finds Vast ‘Halo’ Around Nearby Pulsar", "description": "Astronomers using data from NASA’s Fermi mission have discovered a pulsar with a faint gamma-ray glow that spans a huge part of the sky. Watch to learn more.Credit: NASA’s Goddard Space Flight CenterMusic: \"Insight\" from Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Geminga_Still.jpg (1920x1080) [177.1 KB] || Geminga_Still_print.jpg (1024x576) [65.2 KB] || Geminga_Still_searchweb.png (320x180) [75.1 KB] || Geminga_Still_thm.png (80x40) [5.6 KB] || 13209_Fermi_Geminga_Halo_ProRes_1920x1080_2997.mov (1920x1080) [1.7 GB] || 13209_Fermi_Geminga_Halo_1080_Best.mp4 (1920x1080) [294.5 MB] || 13209_Fermi_Geminga_Halo_1080_Best.webm (1920x1080) [15.3 MB] || 13209_Fermi_Geminga_Halo_1080_Good.mp4 (1920x1080) [144.1 MB] || Fermi_Geminga_Halo_SRT_Captions.en_US.srt [1.7 KB] || Fermi_Geminga_Halo_SRT_Captions.en_US.vtt [1.7 KB] || ", "hits": 72 }, { "id": 31039, "url": "https://svs.gsfc.nasa.gov/31039/", "result_type": "Hyperwall Visual", "release_date": "2019-05-20T10:00:00-04:00", "title": "Extended Groth Strip", "description": "The Extended Groth Strip covers a small swath of sky between the constellations Ursa Major and Boötes, and yet it contains at least 50,000 galaxies visible to NASA’s Hubble Space Telescope, and likely more that are beyond the range of light that Hubble can detect. || STScI-H-p0706a-840x6000.jpg (840x6000) [4.4 MB] || STScI-H-p0706a-840x6000_print.jpg (1024x7314) [5.8 MB] || STScI-H-p0706a-840x6000_print_searchweb.png (320x180) [76.3 KB] || STScI-H-p0706a-840x6000_print_thm.png (80x40) [6.0 KB] || STScI-H-p0706a-5600x40000.tif.dzi (5600x40000) [179 bytes] || STScI-H-p0706a-5600x40000.tif (5600x40000) [666.4 MB] || STScI-H-p0706a-5600x40000.tif_files (1x1) [4.0 KB] || ", "hits": 46 }, { "id": 10082, "url": "https://svs.gsfc.nasa.gov/10082/", "result_type": "Produced Video", "release_date": "2014-11-19T10:00:00-05:00", "title": "Swift Probes Exotic Object: 'Kicked' Black Hole or Mega Star?", "description": "Zoom into Markarian 177 and SDSS1133 and see how they compare with a simulated galaxy collision. When the central black holes in these galaxies combine, a \"kick\" launches the merged black hole on a wide orbit taking it far from the galaxy's core. Credit: NASA's Goddard Space Flight Center/L. Blecha (UMD) || Zoom_Still.jpg (1920x1080) [363.8 KB] || Zoom_Still_print.jpg (1024x576) [137.1 KB] || Zoom_Still_web.png (320x180) [60.9 KB] || SDSS1133_Zoom-Simulation_MPEG4_1920x1080_29.97.mp4 (1920x1080) [31.7 MB] || SDSS1133_Zoom-Simulation_H264_Good_1920x1080_29.97.mov (1920x1080) [68.2 MB] || SDSS1133_Zoom-Simulation_H264_Best_1920x1080_29.97.mov (1920x1080) [278.2 MB] || SDSS1133_Zoom-Simulation_MPEG4_1920x1080_29.97.webmhd.webm (960x540) [13.2 MB] || SDSS1133_Zoom-Simulation_H264_640x360_29.97_iPhone.m4v (640x360) [10.9 MB] || ", "hits": 170 }, { "id": 11278, "url": "https://svs.gsfc.nasa.gov/11278/", "result_type": "Produced Video", "release_date": "2013-07-04T00:00:00-04:00", "title": "Lunar Impact", "description": "On March 17, 2013, a meteoroid crashed into the surface of the moon. Such events are common for the moon, which has no atmosphere to protect itself from incoming debris. In fact, there are hundreds of detectable impacts each year. This particular meteoroid, however, packed an unusual punch, kicking off a powerful explosion as it slammed into the lunar surface. The impact, visible from our planet with the naked eye, created a flash that shined about as bright as the stars of the Little Dipper. Now, NASA’s Lunar Reconnaissance Orbiter—a robotic craft that regularly circles the moon—has been tasked to keep an eye out for the crater left behind in the crash. Observing the crater will help scientists validate and improve models of other lunar impacts. Watch the video to see where astronomers think this meteoroid, and others like it, might have come from. || ", "hits": 2501 }, { "id": 11261, "url": "https://svs.gsfc.nasa.gov/11261/", "result_type": "Produced Video", "release_date": "2013-05-03T12:00:00-04:00", "title": "NASA's Fermi, Swift See 'Shockingly Bright' Gamma-ray Burst", "description": "A record-setting blast of gamma rays from a dying star in a distant galaxy has wowed astronomers around the world. The eruption, which is classified as a gamma-ray burst, or GRB, and designated GRB 130427A, produced the highest-energy light ever detected from such an event.The GRB lasted so long that a record number of telescopes on the ground were able to catch it while space-based observations were still ongoing.Just after 3:47 a.m. EDT on Saturday, April 27, Fermi's Gamma-ray Burst Monitor (GBM) triggered on an eruption of high-energy light in the constellation Leo. The burst occurred as NASA's Swift satellite was slewing between targets, which delayed its Burst Alert Telescope's detection by less than a minute. Fermi's Large Area Telescope (LAT) recorded one gamma ray with an energy of at least 94 billion electron volts (GeV), or some 35 billion times the energy of visible light, and about three times greater than the LAT's previous record. The GeV emission from the burst lasted for hours, and it remained detectable by the LAT for the better part of a day, setting a new record for the longest gamma-ray emission from a GRB.The burst subsequently was detected in optical, infrared and radio wavelengths by ground-based observatories, based on the rapid accurate position from Swift. Astronomers quickly learned that the GRB was located about 3.6 billion light-years away, which for these events is relatively close.Gamma-ray bursts are the universe's most luminous explosions. Astronomers think most occur when massive stars run out of nuclear fuel and collapse under their own weight. As the core collapses into a black hole, jets of material shoot outward at nearly the speed of light. The jets bore all the way through the collapsing star and continue into space, where they interact with gas previously shed by the star and generate bright afterglows that fade with time. If the GRB is near enough, astronomers usually discover a supernova at the site a week or so after the outburst. This GRB is in the closest 5 percent of bursts, so ground-based observatories are monitoring its location in hopes of finding an underlying supernova. || ", "hits": 96 }, { "id": 11188, "url": "https://svs.gsfc.nasa.gov/11188/", "result_type": "Produced Video", "release_date": "2013-02-21T00:00:00-05:00", "title": "It Came From Oort", "description": "Comet Pan-STARRS may soon be visible to the naked eye. Scientists predict this icy body will be observable in the night sky next month as it loops around the sun and passes within 100 million miles of our planet. The comet is thought to have come from a distant region of space, beyond Pluto, known as the Oort cloud. Back in Oort, it was just another hunk of floating cosmic debris—a frozen cocktail of volatile gases and stellar dust. But as the object neared the inner solar system, heat and energy from the sun transformed its anatomy, adding a long tail to its defunct shape. The best time to see Comet Pan-STARRS is in mid-March, when it will appear in the western sky just after sunset. Watch the video to learn more about this comet and its journey through space. || ", "hits": 88 }, { "id": 3895, "url": "https://svs.gsfc.nasa.gov/3895/", "result_type": "Visualization", "release_date": "2012-01-17T00:00:00-05:00", "title": "Deep Star Maps", "description": "This set of star maps was created by plotting the position, brightness, and color of just over 100 million stars from the Bright Star, Tycho-2, and UCAC3 star catalogs. The constellation boundaries are those established by the International Astronomical Union in 1930. The constellation figures also come from the IAU, although they're not official.The maps are presented in plate carrée projections using either celestial (J2000 geocentric right ascension and declination) or galactic coordinates. They are designed for spherical mapping in animation software. The oval shapes near the top and bottom of the star maps are not galaxies. The distortion of the stars in those parts of the map is just an effect of the projection.The celestial coordinate mapping will be the more useful one for animation, since camera rotations in the software will correspond in a straightforward way to the right ascension and declination in astronomy references. The galactic coordinate mapping works as a standalone image showing the edge-on view of our home galaxy, from the inside.The animation demonstrates the use of the maps in a tour of the sky. The tour starts at W-shaped Cassiopeia, then heads south through Perseus to the winter constellation of Orion the Hunter and the Hyades and Pleiades star clusters in Taurus. It moves southeast past Orion's canine companion and its star, Sirius, brightest in the sky, eventually pausing at the rich southern hemisphere portion of the Milky Way in Carina and Crux, the Southern Cross.East of the Cross, in Centaurus, is the binary star Alpha Centauri, at 4.4 light-years the naked-eye star system nearest to the Sun. Also visible as a fuzzy spot near the top of the frame is the globular cluster Omega Centauri. The number of stars used to draw the star maps is large enough to reveal many globular and open star clusters as well as the Large and Small Magellanic Clouds.After passing near the celestial south pole, the tour moves north along the Milky Way to the center of our galaxy near the teapot in Sagittarius. The tour veers northwest from there, finally stopping at the familiar Big Dipper or Plough asterism in Ursa Major.This is an update to entry 3572. || ", "hits": 1087 }, { "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": 52 }, { "id": 3572, "url": "https://svs.gsfc.nasa.gov/3572/", "result_type": "Visualization", "release_date": "2009-01-26T00:00:00-05:00", "title": "The Tycho Catalog Skymap - Version 2.0", "description": "This image set is a skymap of stars from the Tycho and Hipparcos star catalogs, provided by the ESO/ECF generic catalog server. The maps are plotted in plate carrée projection (Cylindrical-Equidistant) using celestial coordinates making them suitable for mapping onto spheres in many popular animation programs. The stars are plotted as gaussian point-spread functions (PSF) so the size and amplitude of the stars corresponds to their relative intensity. The stars are also elongated in Right Ascension (celestial longitude) based on declination (celestial latitude) so stars in the polar regions will still be round when projected on a sphere. Stars fainter than the threshold magnitude, usually selected as 5th magnitude, have their magnitude-intensity curve adjusted so they appear brighter than they really are. This makes the band of the Milky Way more visible. Stellar colors are assigned based on B and V magnitudes (B and V are stellar magnitudes measured through different filters). If Johnson B and V magnitudes are unavailable, Tycho B and V magnitudes are used instead. From these, an effective stellar temperature is derived using the algorithms described in Flower (ApJ 469, 355 1996). Corrections were noted from Siobahn Morgan (UNI). The effective temperature was then converted to CIE tristimulus X,Y,Z triples assuming a black-body emission distribution. The X,Y,Z values are then converted to red-green-blue color pixels. About 2.4 million stars are plotted, but many may be below the pixel intensity resolution. The three most conspicuously missing objects on these maps are the Andromeda galaxy (M31) and the two Magellanic Clouds. Changes from the first version #3442, The Tycho Catalog Skymap: The star generation algorithm now favors use of the Johnson magnitudes when available. This improves the star colors over the previous method. The star intensity profiles are also slightly modified to make the cores brighter with a faster intensity falloff. We have also set the color standard to SMPTE with a gamma of 1.8.Update: This skymap has been revised. The newer version is available at Deep Star Maps. || ", "hits": 222 }, { "id": 3442, "url": "https://svs.gsfc.nasa.gov/3442/", "result_type": "Visualization", "release_date": "2007-08-20T00:00:00-04:00", "title": "The Tycho Catalog Skymap", "description": "This image set is a skymap of stars from the Tycho and Hipparcos star catalogs. The maps are plotted in plate carrée projection (Cylindrical-Equidistant) using celestial coordinates making them suitable for mapping onto spheres in many popular animation programs. The stars are plotted as gaussian point-spread functions (PSF) so the size and amplitude of the stars corresponds to their relative intensity. The stars are also elongated in Right Ascension (celestial longitude) based on declination (celestial latitude) so stars in the polar regions will still be round when projected on a sphere. Stars fainter than the threshold magnitude, usually selected as 5th magnitude, have their magnitude-intensity curve adjusted so they appear brighter than they really are. This makes the band of the Milky Way more visible. Stellar colors are assigned based on B and V magnitudes (B and V are stellar magnitudes measured through different filters). If Tycho B and V magnitudes are unavailable, Johnson B and V magnitudes are used instead. From these, an effective stellar temperature is derived using the algorithms described in Flower (ApJ 469, 355 1996). Corrections were noted from Siobahn Morgan (UNI). The effective temperature was then converted to CIE tristimulus X,Y,Z triples assuming a black-body emission distribution. The X,Y,Z values are then converted to red-green-blue color pixels. About 2.4 million stars are plotted, but many may be below the pixel intensity resolution. The three most conspicuously missing objects on these maps are the Andromeda galaxy (M31) and the two Magellanic Clouds. [The images in this visualization were updated August 28, 2007 to fix a bug in the star generation algorithm.]This skymap has been superseded by #3572, The Tycho Catalog Skymap - Version 2.0. || ", "hits": 133 } ] }