{ "count": 16, "next": null, "previous": null, "results": [ { "id": 40542, "url": "https://svs.gsfc.nasa.gov/gallery/dark-energy/", "result_type": "Gallery", "release_date": "2026-01-28T00:00:00-05:00", "title": "Dark Energy", "description": "Some 13.8 billion years ago, the universe began with a rapid expansion we call the big bang. After this initial expansion, which lasted a fraction of a second, gravity started to slow the universe down. But the cosmos wouldn’t stay this way. Nine billion years after the universe began, its expansion started to speed up, driven by an unknown force that scientists have named dark energy.\n\nBut what exactly is dark energy?\n\nThe short answer is: We don't know. But we do know that it exists, it’s making the universe expand at an accelerating rate, and approximately 68.3 to 70% of the universe is dark energy.", "hits": 926 }, { "id": 14799, "url": "https://svs.gsfc.nasa.gov/14799/", "result_type": "Produced Video", "release_date": "2025-05-27T20:54:00-04:00", "title": "Astrophysics: Observing the Universe Vertical Video", "description": "This page contains vertically-formatted Astrophysics videos related to general astrophysical imagery.", "hits": 486 }, { "id": 40455, "url": "https://svs.gsfc.nasa.gov/gallery/spacecraft-animations/", "result_type": "Gallery", "release_date": "2023-01-24T00:00:00-05:00", "title": "Satellite Animations", "description": "A collection of spacecraft beauty pass animations for current missions.", "hits": 329 }, { "id": 13606, "url": "https://svs.gsfc.nasa.gov/13606/", "result_type": "Produced Video", "release_date": "2020-05-20T11:00:00-04:00", "title": "A New Portrait of the Cosmos is Coming", "description": "Welcome to NASA's upcoming infrared survey mission, taking a wider view of the cosmos.Credit: NASA's Goddard Space Flight CenterMusic: \"The Decision (alternate)\" from Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Trailer_still_1_print.jpg (1024x576) [181.5 KB] || Trailer_still_1.jpg (3840x2160) [2.0 MB] || Trailer_still_1_searchweb.png (180x320) [104.8 KB] || Trailer_still_1_thm.png (80x40) [7.9 KB] || Roman_Space_Telescope_Trailer_ProRes_1920x1080_2997.mov (1920x1080) [797.0 MB] || Roman_Space_Telescope_Trailer_Best_1080.mp4 (1920x1080) [281.5 MB] || Roman_Space_Telescope_Trailer_1080.mp4 (1920x1080) [132.9 MB] || Roman_Space_Telescope_Trailer_1080.webm (1920x1080) [7.2 MB] || Roman_Trailer_SRT_Captions.en_US.srt [740 bytes] || Roman_Trailer_SRT_Captions.en_US.vtt [753 bytes] || ", "hits": 80 }, { "id": 13184, "url": "https://svs.gsfc.nasa.gov/13184/", "result_type": "Produced Video", "release_date": "2019-04-29T00:00:00-04:00", "title": "Goddard at 60", "description": "On July 29, 1958, President Eisenhower signed the National Aeronautics and Space Act, establishing the National Aeronautics and Space Administration. When it began operations on October 1, 1958, NASA consisted mainly of the four laboratories and some 80 employees of the government's 46-year-old research agency, the National Advisory Committee for Aeronautics (NACA). Goddard Space Flight Center was established on May 1, 1959 as NASA's first space flight center.In celebration of its 60th year, we look back at the innovations and scientific impacts the women and men of Goddard have made throughout its history. || ", "hits": 44 }, { "id": 11553, "url": "https://svs.gsfc.nasa.gov/11553/", "result_type": "Produced Video", "release_date": "2014-05-30T13:00:00-04:00", "title": "WFIRST: Uncovering the Mysteries of the Universe", "description": "The Wide-Field Infrared Survey Telescope (WFIRST) is an upcoming space telescope designed to perform wide-field imaging and spectroscopy of the infrared sky. One of WFIRST’s objectives will be looking for clues about dark energy—the mysterious force that is accelerating the expansion of the universe. Another objective of the mission will be finding and studying exoplanets. WFIRST uses the same 2.4 meter telescope size as Hubble, but with 18 cutting-edge fourth-generation image sensors compared to Hubble's single first-generation sensor. As a result, each WFIRST image will cover over 200 times as much as a Hubble Wide Field Camera 3/IR image and be 300 megapixels in size. Hubble images reveal thousands of galaxies; a single WFIRST image will uncover millions.To help uncover the mystery of dark energy, WFIRST will make incredibly precise measurements of the universe. These measurements, like the distance and position of galaxies, can be compared to other measurements—such as the cosmic microwave background from the WMAP mission—to determine how dark energy has changed over time. WFIRST can also measure the slight distortions in light from distant galaxies as it passes more nearby mass concentrations. These data will build a three dimensional picture of how mass is distributed throughout the universe, and provide independent confirmation of its structure.Because WFIRST has such a large and sensitive field of view, it can find thousands of new exoplanets through a process called microlensing. When one star in the sky appears to pass nearly in front of another, the light rays of the background source star become bent due to the gravitational \"attraction\" of the foreground star. This \"lens\" star is then a virtual magnifying glass, amplifying the brightness of the background source star. If the lens star harbors a planetary system, then those planets can also act as lenses, each one producing a short deviation in the brightness of the source. For closer planets, WFIRST will open a new era of direct observation. Currently only a handful of planets are observable in light reflected off of them, and they are all large planets close to their stars. WFIRST will be able to detect planets as small as Neptune, and as far from their stars as Saturn is from the sun. This is possible thanks to newly developed coronagraphs, which block the bright light from the star to make the planet more visible. || ", "hits": 159 }, { "id": 11008, "url": "https://svs.gsfc.nasa.gov/11008/", "result_type": "Produced Video", "release_date": "2012-06-21T16:00:00-04:00", "title": "WMAP—From the Archives", "description": "On June 20, 2012, Dr. Charles Bennett and the WMAP team were awarded the Gruber Cosmology Prize. The Wilkinson Microwave Anisotropy Probe (WMAP) was built and launched by NASA to measure a remnant of the early universe - its oldest light. The conditions of the early times are imprinted on this light. It is the result of what happened earlier, and a backlight for the later development of the universe. This light lost energy as the universe expanded over 13.7 billion years, so WMAP now sees the light as microwaves. By making accurate measurements of microwave patterns, WMAP has answered many longstanding questions about the universe's age, composition and development.This video from Goddard's tape archive features Dr. Bennett after the first results were announced in 2003. || ", "hits": 108 }, { "id": 40073, "url": "https://svs.gsfc.nasa.gov/gallery/astro/", "result_type": "Gallery", "release_date": "2010-07-12T00:00:00-04:00", "title": "Goddard's Astrophysics Gallery", "description": "This multimedia gallery assembles and organizes the astrophysics content on the Scientific Visualization Studio website. All of NASA's Goddard Space Flight Center's animations, visualizations, videos and still images relating to the universe beyond our Solar System are here. Browse through the basic categories or find Goddard's most recent releases under each specific astronomical feature. Find all the content relating to a particular satellite under \"Missions.\" Most entries have multiple downloadable formats and several resolutions.", "hits": 283 }, { "id": 10580, "url": "https://svs.gsfc.nasa.gov/10580/", "result_type": "Produced Video", "release_date": "2010-03-10T12:00:00-05:00", "title": "Dark Flow", "description": "Distant galaxy clusters mysteriously stream at a million miles per hour along a path roughly centered on the southern constellations Centaurus and Hydra. A new study led by Alexander Kashlinsky at NASA's Goddard Space Flight Center in Greenbelt, Md., tracks this collective motion — dubbed the \"dark flow\" — to twice the distance originally reported, out to more than 2.5 billion light-years. The study used a new technique to determine the motion of X-ray-emitting galaxy clusters. The clusters appear to be moving along a line extending from our solar system toward Centaurus/Hydra, but the direction of this motion is less certain. Evidence indicates that the clusters are headed outward along this path, away from Earth, but the team cannot yet rule out the opposite flow. The video shows the team's catalog of galaxy clusters separated into four \"slices\" representing different distance ranges. A colored ellipse shows the flow axis for the clusters within each slice. While the size and exact position of the ellipses vary, the overall trends show remarkable agreement. The video includes images of representative clusters in each distance slice. The dark flow is controversial because the distribution of matter in the observed universe cannot account for it. Its existence suggests that some structure beyond the visible universe — outside our \"horizon\" — is pulling on matter in our vicinity. || ", "hits": 213 }, { "id": 10370, "url": "https://svs.gsfc.nasa.gov/10370/", "result_type": "Produced Video", "release_date": "2009-10-27T00:00:00-04:00", "title": "John Mather Lecture Presentation", "description": "From the Big Bang to the Nobel Prize and on to the James Webb Space Telescope and the Discovery of Alien Life || ", "hits": 36 }, { "id": 20165, "url": "https://svs.gsfc.nasa.gov/20165/", "result_type": "Animation", "release_date": "2008-07-22T12:00:00-04:00", "title": "WMAP Spacecraft", "description": "WMAP is mapping the sky for radio based emissions || WMAP heading away from Earth || MapBeauty00202_print.jpg (1024x768) [119.4 KB] || MapBeauty_web.png (320x240) [175.6 KB] || MapBeauty_thm.png (80x40) [16.6 KB] || MapBeauty_searchweb.png (320x180) [105.3 KB] || MapBeauty.webmhd.webm (960x540) [6.3 MB] || MapBeauty.mov (320x240) [20.5 MB] || ", "hits": 10 }, { "id": 10121, "url": "https://svs.gsfc.nasa.gov/10121/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "The WMAP Spacecraft", "description": "Scientists using NASA's Wilkinson Microwave Anistropy Probe (WMAP) have created the most detailed portrait of the infant Universe. By capturing the afterglow of the Big Bang, called the cosmic microwave background (CMB), we now believe the Universe to be 13.7 billion years olf. Encoded in these patterns is much-anticipated information about the fundamental properties of the early Universe. WMAP launched on June 30, 2001. || ", "hits": 91 }, { "id": 10122, "url": "https://svs.gsfc.nasa.gov/10122/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "WMAP Hard at Work", "description": "Scientists using NASA's Wilkinson Microwave Anistropy Probe (WMAP) have created the most detailed portrait of the infant Universe. By capturing the afterglow of the Big Bang, called the cosmic microwave background (CMB), we now believe the Universe to be 13.7 billion years old. Encoded in these patterns is much-anticipated information about the fundamental properties of the early Universe. WMAP launched on June 30, 2001. || ", "hits": 111 }, { "id": 10123, "url": "https://svs.gsfc.nasa.gov/10123/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "WMAP's Portrait of the Early Universe", "description": "Scientists using NASA's Wilkinson Microwave Anistropy Probe (WMAP) have created the most detailed portrait of the infant Universe. By capturing the afterglow of the Big Bang, called the cosmic microwave background (CMB), we now believe the Universe to be 13.7 billion years old. Encoded in these patterns is much—anticipated information about the fundamental properties of the early Universe. WMAP launched on June 30, 2001. || ", "hits": 389 }, { "id": 10128, "url": "https://svs.gsfc.nasa.gov/10128/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "The Big Bang", "description": "This dominant cosmological theory suggests the Universe began nearly 13.7 billion years ago, expanding rapidly from a very dense and incredibly hot state. Eventually, stars ignited and galaxies slowly formed. The Big Bang theory has been imporved and advanced especially through NASA's Cosmic Background Explorer (COBE) and WMAP missions. This animation conceptualizes these explosive beginnings of the Universe. || ", "hits": 1124 }, { "id": 10136, "url": "https://svs.gsfc.nasa.gov/10136/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "Sloan Digital Sky Survey", "description": "This visualization presents a 3-D view of the largest structures in the Universe via data from the Sloan Digital Sky Survey. The SDSS is the most ambitious astronomical survey ever undertaken. It provides a 3-dimensional map of about a million galaxies and quasars. As the survey progresses, the data are released to the scientific community and the general public in annual increments. || ", "hits": 249 } ] }