{ "count": 49, "next": null, "previous": null, "results": [ { "id": 14834, "url": "https://svs.gsfc.nasa.gov/14834/", "result_type": "Produced Video", "release_date": "2025-05-12T00:00:00-04:00", "title": "Cosmic Dawn: The Untold Story of the James Webb Space Telescope", "description": "For more than three decades, NASA and an international team of scientists and engineers pushed the limits of technology, innovation, and perseverance to build and launch the James Webb Space Telescope, the most powerful space observatory ever created. Cosmic Dawn brings audiences behind the scenes with the Webb film crew, and never-before-heard testimonies revealing the real story of how this telescope overcame all odds. ||", "hits": 356 }, { "id": 13013, "url": "https://svs.gsfc.nasa.gov/13013/", "result_type": "Produced Video", "release_date": "2018-07-25T11:00:00-04:00", "title": "NASA's Most Scientifically Complex Space Observatory Requires Precision", "description": "The James Webb Space Telescope will be the world's premier space science observatory. Webb will solve mysteries of our solar system, look beyond to distant worlds around other stars, and probe the mysterious structures and origins of our universe and our place in it. Webb is an international project led by NASA with its partners, the European Space Agency (ESA) and the Canadian Space Agency (CSA). || NASAs_Most_Scientifically_Complex_Space_Observatory_Requires_Precision-STILL-IMAGE30.jpg (1920x1080) [1.2 MB] || NASAs_Most_Scientifically_Complex_Space_Observatory_Requires_Precision-STILL-IMAGE30_print.jpg (1024x576) [464.6 KB] || NASAs_Most_Scientifically_Complex_Space_Observatory_Requires_Precision-STILL-IMAGE30_searchweb.png (320x180) [79.5 KB] || NASAs_Most_Scientifically_Complex_Space_Observatory_Requires_Precision-STILL-IMAGE30_thm.png (80x40) [6.5 KB] || NASAs_Most_Scientifically_Complex_Space_Observatory_Requires_Precision-ProRes1.webm (1920x1080) [28.8 MB] || NASAs_Most_Scientifically_Complex_Space_Observatory_Requires_Precision-MP4.mp4 (1920x1080) [253.1 MB] || NASAs_Most_Scientifically_Complex_Space_Observatory_Requires_Precision-SRT-CC.en_US.srt [4.7 KB] || NASAs_Most_Scientifically_Complex_Space_Observatory_Requires_Precision-SRT-CC.en_US.vtt [4.7 KB] || NASAs_Most_Scientifically_Complex_Space_Observatory_Requires_Precision-ProRes1.mov (1920x1080) [3.2 GB] || ", "hits": 165 }, { "id": 11638, "url": "https://svs.gsfc.nasa.gov/11638/", "result_type": "Produced Video", "release_date": "2014-09-09T11:30:00-04:00", "title": "Dark Discovery", "description": "Dying stars form modest black holes measuring up to around 25 times the mass of our sun. At the opposite extreme, most large galaxies contain a supermassive black hole with a mass tens of thousands of times greater. But in a galaxy about 12 million light-years away, scientists have found evidence that points to the existence of a rare breed of black hole weighing somewhere in between. The object, called M82 X-1, is the brightest X-ray source in the galaxy Messier 82. While astronomers have suspected it of being a midsize, or intermediate-mass, black hole for at least a decade, an accurate determination of its mass hasn’t been made until now. Using archival data from NASA’s Rossi X-ray Timing Explorer satellite, astronomers discovered that M82 X-1 weighs about 400 times the sun's mass, placing it among the few midsize black holes known. Watch the video to learn more. || ", "hits": 204 }, { "id": 11625, "url": "https://svs.gsfc.nasa.gov/11625/", "result_type": "Produced Video", "release_date": "2014-08-18T15:00:00-04:00", "title": "NASA's RXTE Satellite Catches the Beat of a Midsize Black Hole", "description": "Astronomers from the University of Maryland, College Park (UMCP) and NASA's Goddard Space Flight Center have uncovered rhythmic pulsations from a rare breed of black hole in archival data from NASA's Rossi X-ray Timing Explorer (RXTE) satellite. The signals provide compelling evidence that the object, known as M82 X-1, is one of only a few midsize black holes known.Dying stars form modest black holes measuring up to around 25 times the mass of our sun. At the opposite extreme, most large galaxies contain a supermassive black hole with a mass tens of thousands of times greater. Just as drivers traveling a highway packed with compact cars and monster trucks might start looking for sedans, astronomers are searching for a middle range of the black hole population and wondering why they see so few.M82 X-1 is the brightest X-ray source in Messier 82, a galaxy located about 12 million light-years away in the constellation Ursa Major. While astronomers have suspected the object of being a midsize, or intermediate-mass, black hole for at least a decade, estimates have varied from 20 to 1,000 solar masses, preventing a definitive classification.Working with Mushotzky and Strohmayer, UMCP graduate student Dheeraj Pasham sifted through about 800 RXTE observations of M82 in a search for specific types of brightness changes that would help pin down the mass of the X-ray source.As gas streams toward the black hole it piles up into a disk around it. Friction within the disk heats the gas to millions of degrees, which is hot enough to emit X-rays. Cyclical intensity variations in these X-rays reflect processes occurring within the disk.Scientists think the most rapid changes occur near the inner edge of the disk on the brink of the black hole's event horizon, the point beyond which nothing, not even light, can escape. With such close proximity to the black hole, the effects of Einstein's general relativity come into play, resulting in X-ray variations that repeat at nearly regular intervals.Astronomers call these signals quasi-periodic oscillations, or QPOs, and have shown that for black holes produced by stars, their frequencies scale up or down depending on the size of the black hole.When astronomers study X-ray fluctuations from many stellar-mass black holes, they see both slow and fast QPOs, but the fast ones often come in pairs with a specific 3:2 rhythmic relationship. For every three flashes from one member of the QPO pair, its partner flashes twice.The combined presence of slow QPOs and a faster pair in a 3:2 rhythm effectively sets a standard scale that gives scientists a powerful tool for establishing the masses of stellar black holes.A decade ago, Strohmayer and Mushotzky showed the presence of slow QPO signals from M82 X-1. In order to apply the tried-and-true relationship used for stellar-mass black holes, the researchers needed to identify a pair of steady fluctuations exhibiting the same 3:2 beat in RXTE observations. By analyzing six years of data, they located X-ray variations that reliably repeated about 3.3 and 5.1 times each second, just the 3:2 relationship they needed.This allowed them to calculate that M82 X-1 weighs about 400 solar masses — the most accurate determination to date for this object and one that clearly places it in the category of intermediate-mass black holes.Read the paper at http://www.nature.com/nature/journal/vaop/ncurrent/full/nature13710.html.Read the press release at http://www.nasa.gov/topics/universe/index.html. || ", "hits": 156 }, { "id": 11476, "url": "https://svs.gsfc.nasa.gov/11476/", "result_type": "Produced Video", "release_date": "2014-04-22T00:00:00-04:00", "title": "Hunting Black Holes", "description": "Spotting black holes is tricky. Because they don’t give off light, astronomers have a difficult time pinpointing their location. But when a black hole gets close enough to an object, like a star, for example, and begins consuming the object's mass, the matter that pours into its gravitational clutches can get so hot that it glows and releases energy in the form of X-ray light. The most powerful X-rays are emitted from the hottest material swirling just outside the edge of the black hole. By observing this light with space telescopes, scientists can determine where black holes are hiding in the cosmos. Watch the video to see a black hole in action. || ", "hits": 146 }, { "id": 11216, "url": "https://svs.gsfc.nasa.gov/11216/", "result_type": "Produced Video", "release_date": "2014-02-20T11:00:00-05:00", "title": "Black Widow Pulsars Consume Their Mates", "description": "Black widow spiders and their Australian cousins, known as redbacks, are notorious for an unsettling tendency to kill and devour their male partners. Astronomers have noted similar behavior among two rare breeds of binary system that contain rapidly spinning neutron stars, also known as pulsars. The essential features of black widow and redback binaries are that they place a normal but very low-mass star in close proximity to a millisecond pulsar, which has disastrous consequences for the star. Black widow systems contain stars that are both physically smaller and of much lower mass than those found in redbacks.So far, astronomers have found at least 18 black widows and nine redbacks within the Milky Way, and additional members of each class have been discovered within the dense globular star clusters that orbit our galaxy. One black widow system, named PSR J1311-3430 and discovered in 2012, sets the record for the tightest orbit of its class and contains one of the heaviest neutron stars known. The pulsar's featherweight companion, which is only a dozen or so times the mass of Jupiter and just 60 percent of its size, completes an orbit every 93 minutes – less time than it takes to watch most movies. The side of the star facing the pulsar is heated to more than 21,000 degrees Fahrenheit (nearly 12,000 C), or more than twice as hot as the sun's surface. Recent studies allow a range of values extending down to 2 solar masses for the pulsar, making it one of the most massive neutron stars known. Watch the video to learn more about this system and its discovery from some of the scientists involved. || ", "hits": 145 }, { "id": 11445, "url": "https://svs.gsfc.nasa.gov/11445/", "result_type": "Produced Video", "release_date": "2014-01-28T00:00:00-05:00", "title": "Cosmic Clumps", "description": "When hot gas and millions of stars coalesce into galaxies, the gravity that glues these systems together may also recruit thousands of other galaxies to form one massive galaxy cluster. Stretching across millions of light-years and swarming with up to trillions of stars, galaxy clusters comprise the largest gravitationally bound objects in the known universe. Their sheer size and high composition of mysterious dark matter make them prized research subjects for astrophysicists. Using images of galaxy clusters from NASA’s Hubble Space Telescope, scientists have calculated that dark matter makes up approximately 23 percent of all matter and energy in space. These measurements impart clues into the ways dark matter may be driving the expansion of the universe after the Big Bang. Watch the video for a look inside a galaxy cluster. || ", "hits": 201 }, { "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": 180 }, { "id": 10947, "url": "https://svs.gsfc.nasa.gov/10947/", "result_type": "Produced Video", "release_date": "2012-04-03T00:00:00-04:00", "title": "Crash And Burst", "description": "Imagine a dead star the size of a city and with more mass than our sun. Now imagine two of these ultra-heavy spheres smashing into each other, generating a blast bright enough to outshine an entire galaxy. Scientists have recreated just that using supercomputers to model what happens during the collision of two neutron stars. The entire process unfolds in just 35 thousandths of a second, but what this new analysis reveals is how the tangled magnetic field lines of the collapsed neutron stars restructure around a black hole, focusing a narrow stream of particles that jet into space at 99.995 percent the speed of light. Scientists believe events like this are one source of gamma-ray bursts, the powerful flashes of light from beyond the Milky Way that were first detected by satellites in the late 1960s. Watch the visualization below to see this lightning-fast cosmic wreck evolve in super-slow motion. || ", "hits": 459 }, { "id": 10858, "url": "https://svs.gsfc.nasa.gov/10858/", "result_type": "Produced Video", "release_date": "2011-11-03T14:00:00-04:00", "title": "Fermi Discovers Youngest Millisecond Pulsar", "description": "An international team of scientists using NASA's Fermi Gamma-ray Space Telescope has discovered a surprisingly powerful millisecond pulsar that challenges existing theories about how these objects form. At the same time, another team has exploited improved analytical techniques to locate nine new gamma-ray pulsars in Fermi data.A pulsar, also called a neutron star, is the closest thing to a black hole astronomers can observe directly, crushing half a million times more mass than Earth into a sphere no larger than a city. This matter is so compressed that even a teaspoonful weighs as much as Mount Everest.Typically, millisecond pulsars are a billion years or more old, ages commensurate with a stellar lifetime. But in the Nov. 3 issue of Science, the Fermi team reveals a bright, energetic millisecond pulsar only 25 million years old.The object, named PSR J1823—3021A, lies within NGC 6624, a spherical assemblage of ancient stars called a globular cluster, one of about 160 similar objects that orbit our galaxy. The cluster is about 10 billion years old and lies about 27,000 light-years away toward the constellation Sagittarius.\"With this new batch of pulsars, Fermi now has detected more than 100, which is an exciting milestone when you consider that before Fermi's launch only seven of them were known to emit gamma rays,\" said Pablo Saz Parkinson, an astrophysicist at the Santa Cruz Institute for Particle Physics, University of California Santa Cruz. || ", "hits": 209 }, { "id": 10861, "url": "https://svs.gsfc.nasa.gov/10861/", "result_type": "Produced Video", "release_date": "2011-11-03T14:00:00-04:00", "title": "Fermi Pulsar Interactive Videos", "description": "These videos originally accompanied a Fermi Pulsar Interactive. That interactive is now available here. || ", "hits": 640 }, { "id": 10740, "url": "https://svs.gsfc.nasa.gov/10740/", "result_type": "Produced Video", "release_date": "2011-04-07T09:00:00-04:00", "title": "When Neutron Stars Collide", "description": "Armed with state-of-the-art supercomputer models, scientists have shown that colliding neutron stars can produce the energetic jet required for a gamma-ray burst. Earlier simulations demonstrated that mergers could make black holes. Others had shown that the high-speed particle jets needed to make a gamma-ray burst would continue if placed in the swirling wreckage of a recent merger. Now, the simulations reveal the middle step of the process—how the merging stars' magnetic field organizes itself into outwardly directed components capable of forming a jet. The Damiana supercomputer at Germany's Max Planck Institute for Gravitational Physics needed six weeks to reveal the details of a process that unfolds in just 35 thousandths of a second—less than the blink of an eye.For the researchers' website, with more video and stills of their simulations, go here. || ", "hits": 673 }, { "id": 10116, "url": "https://svs.gsfc.nasa.gov/10116/", "result_type": "Produced Video", "release_date": "2011-03-17T00:00:00-04:00", "title": "Afterschool Universe", "description": "Afterschool Universe is an out-of-school-time astronomy program for middle school students that explores basic astronomy concepts through engaging hands-on activities and then takes participants on a journey through the Universe beyond the Solar System. These videos are designed for instructors using the Afterschool Universe program. They are designed to give a better understanding of the assembly, technique and layout of some of the more complicated demonstrations. || ", "hits": 181 }, { "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": 375 }, { "id": 10582, "url": "https://svs.gsfc.nasa.gov/10582/", "result_type": "Produced Video", "release_date": "2010-03-05T00:00:00-05:00", "title": "Pulsar Blinking", "description": "A pulsar is a neutron star which emits beams of radiation that sweep through the earth's line of sight. Like a black hole, it is an endpoint to stellar evolution. The \"pulses\" of high-energy radiation we see from a pulsar are due to a misalignment of the neutron star's rotation axis and its magnetic axis. Pulsars pulse because the rotation of the neutron star causes the radiation generated within the magnetic field to sweep in and out of our line of sight with a regular period. External viewers see pulses of radiation whenever this region above the the magnetic pole is visible. Because of the rotation of the pulsar, the pulses thus appear much as a distant observer sees a lighthouse appear to blink as its beam rotates. The pulses come at the same rate as the rotation of the neutron star, and, thus, appear periodic. || ", "hits": 322 }, { "id": 10543, "url": "https://svs.gsfc.nasa.gov/10543/", "result_type": "Produced Video", "release_date": "2010-01-26T00:00:00-05:00", "title": "Neutron Star Merge", "description": "Binary systems containing neutron stars are born when the cores of two orbiting stars collapse in supernova explosions. Neutron stars pack the mass of our sun into the size of a city. They are so dense and packed so tightly that the boundaries atoms nuclei disappear. In such systems, Einstein's theory of general relativity predicts that neutron stars emit gravitational radiation, ripples of space-time. This causes the orbits to shrink and gradually brings the neutron stars closer together. Shown here is such a system after about 1 billion years, when two equal-mass neutron whirl around each other at 60,000 times a minute. The stars merge in a few milliseconds, sending out a burst of gravitational waves and a brief, intense gamma-ray burst. || ", "hits": 619 }, { "id": 10544, "url": "https://svs.gsfc.nasa.gov/10544/", "result_type": "Produced Video", "release_date": "2010-01-26T00:00:00-05:00", "title": "Black Hole Binary Creates Gravity Waves", "description": "When smaller black holes orbit around a supermassive black hole, Einstein's theory of general relativity predicts that they will emit gravitational radiation. These ripples of space-time cause the orbits to shrink and gradually brings the black holes closer enough together to merge. || ", "hits": 115 }, { "id": 10545, "url": "https://svs.gsfc.nasa.gov/10545/", "result_type": "Produced Video", "release_date": "2010-01-26T00:00:00-05:00", "title": "Black Hole Accretion Disc Energies", "description": "A black hole is a massive object whose gravitational field is so intense that nothing - not even light (electromagnetic radiation) — can escape from within its so-called event horizon. Accretion disks of hot material encircle many black holes, and this material emits X-rays and other forms of energy. Gas closer to the black hole is hotter and emits more energetic radiation. Gas at the innermost stable orbit tells astronomers whether the black hole is spinning because a rotating black hole can host material in stable orbits much closer to its event horizon. Oppositely directed jets of gas often form in the innermost zone of black hole accretion disks. || ", "hits": 1333 }, { "id": 10546, "url": "https://svs.gsfc.nasa.gov/10546/", "result_type": "Produced Video", "release_date": "2010-01-26T00:00:00-05:00", "title": "Neutron Star and Red Giant Binary Destruction", "description": "After a supernova, a binary star may be composed of one red giant and one neutron star. The red giant can be torn apart by the neturon star's gravity if it is too close. || ", "hits": 392 }, { "id": 10547, "url": "https://svs.gsfc.nasa.gov/10547/", "result_type": "Produced Video", "release_date": "2010-01-26T00:00:00-05:00", "title": "Supernova with Expanding Shell", "description": "Stars which are 8 times or more massive than our Sun end their lives in a most spectacular way; they go supernova. A supernova explosion will occur when there is no longer enough fuel for the fusion process in the core of the star to create an outward pressure which combats the inward gravitational pull of the star's great mass. In less than a second, the star begins the final phase of gravitational collapse. The core temperature rises to over 100 billion degrees as the iron atoms are crushed together. The repulsive force between the nuclei is overcome by the force of gravity. So the core compresses but then recoils. The energy of the recoil is transferred to the envelope of the star, which then explodes and produces a shock wave. As the shock encounters material in the star's outer layers, the material is heated, fusing to form new elements and radioactive isotopes. The shock then propels that matter out into space. The material that is exploded away from the star is now known as a supernova remnant. || ", "hits": 129 }, { "id": 10555, "url": "https://svs.gsfc.nasa.gov/10555/", "result_type": "Produced Video", "release_date": "2010-01-26T00:00:00-05:00", "title": "Massive Merger of Galaxies is Most Powerful on Record", "description": "In 2004, an international team of scientists, led by a NASA-funded researcher, observed a nearby head-on collision of two galaxy clusters. The clusters smashed together thousands of galaxies and trillions of stars. It is one of the most powerful events ever witnessed. Such collisions are second only to the Big Bang in total energy output.The event was captured with the European Space Agency's XMM-Newton observatory. Scientists are calling the event the perfect cosmic storm: galaxy clusters that collided like two high-pressure weather fronts and created hurricane-like conditions, tossing galaxies far from their paths and churning shock waves of 100-million-degree gas through intergalactic space. The cluster, Abell 754 in the constellation Hydra, has been known for decades. However, the new observation reveals the merger may have occurred from the opposite direction than was previously thought.This unprecedented view of merger in action crystallizes the theory the universe built its magnificent hierarchal structure from the \"bottom up,\" essentially through mergers of smaller galaxies and galaxy clusters into bigger ones.Galaxy clusters are the largest gravitationally bound structures in the universe, containing hundreds to thousands of galaxies. || ", "hits": 144 }, { "id": 10536, "url": "https://svs.gsfc.nasa.gov/10536/", "result_type": "Produced Video", "release_date": "2009-12-02T06:00:00-05:00", "title": "Suzaku: Intergalactic Prospector", "description": "Recently astronomers used the Suzaku orbiting X-ray observatory, operated jointly by NASA and the Japanese space agency, to discover the largest known reservoir of rare metals in the universe. Suzaku detected the elements chromium and manganese while observing the central region of the Perseus galaxy cluster. The metallic atoms are part of the hot gas, or \"intergalactic medium,\" that lies between galaxies. Exploding stars, or supernovas, forge the heavy elements. The supernovas also create vast outflows, called superwinds. These galactic gusts transport heavy elements into the intergalactic void. || ", "hits": 113 }, { "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": 77 }, { "id": 10253, "url": "https://svs.gsfc.nasa.gov/10253/", "result_type": "Produced Video", "release_date": "2008-09-26T01:00:00-04:00", "title": "Scientists Watch Baby Black Hole Get to Work Fast", "description": "Scientists using NASA's Swift satellite say they have found newborn black holes, just seconds old, in a confused state of existence, sloppily gorging on material falling into them while somehow propelling other material away at great speeds. These black holes are born in massive star explosions. An initial blast obliterates the star. Yet the chaotic black hole activity appears to re-energize the explosion again and again over the course of several minutes. This is a dramatically different view of star death, one that entails multiple explosive outbursts and not just a single bang, as previously thought.When a massive star runs out of fuel, it no longer has the energy to support its mass. The core collapses and forms a black hole. Shockwaves bounce out and obliterate the outer shells of the star. Previously scientists thought that a single explosion is followed by a graceful afterglow of the dying embers. Now, according to Swift observations, it appears that a newborn black hole in the core somehow re-energizes the explosion again and again, creating multiple bursts all within a few minutes. || ", "hits": 96 }, { "id": 10346, "url": "https://svs.gsfc.nasa.gov/10346/", "result_type": "Produced Video", "release_date": "2008-08-29T00:00:00-04:00", "title": "The Last Mission to Hubble", "description": "Hubble Space Telescope Servicing Mission 4 is the last time humans will visit Hubble. NASA's scientists, engineers and astronauts are working together to make Hubble better than it has been before. See what NASA has planned for this last mission to Hubble; from new science instruments, to two challenging and never-done-before instrument repairs, and numerous upgrades.For complete transcript, click here. || G08-004HD-HST-Mission_Overview.00502_print.jpg (1024x768) [62.9 KB] || G08-004HD-HST-Mission_Overview_web.png (320x240) [58.0 KB] || G08-004HD-HST-Mission_Overview_thm.png (80x40) [12.9 KB] || G08-004HD-HST-Mission_Overview_searchweb.png (320x180) [58.9 KB] || HST-Mission_Overview_AppleTV.webmhd.webm (960x540) [70.2 MB] || G08-004HD-HST-Mission_Overview-720p30.mov (1280x720) [157.5 MB] || HST-Mission_Overview_AppleTV.m4v (960x540) [170.7 MB] || G08-004HD-HST-Mission_Overview-iPod_lg.m4v (640x360) [55.9 MB] || G08-004HD-HST-Mission_Overview.mp4 (320x240) [15.4 MB] || G08-004HD-HST-Mission_Overview-iPod_sm.m4v (320x180) [24.6 MB] || G08-004HD-HST-Mission_Overview.wmv (346x260) [41.2 MB] || ", "hits": 141 }, { "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": 174 }, { "id": 10327, "url": "https://svs.gsfc.nasa.gov/10327/", "result_type": "Produced Video", "release_date": "2008-08-22T00:00:00-04:00", "title": "Astronaut Touches Hubble Animation", "description": "Animation of astronaut's gloved hand touches the side of the Hubble Space Telescope. Reflected in the telescope's aft shroud are the two EVA astronaut's images. || ", "hits": 18 }, { "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": 250 }, { "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": 68 }, { "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": 186 }, { "id": 10244, "url": "https://svs.gsfc.nasa.gov/10244/", "result_type": "Produced Video", "release_date": "2008-06-17T00:00:00-04:00", "title": "Hubble Servicing Mission Movie Trailer 1", "description": "The last mission to Hubble, Servicing Mission 4 movie-trailer-like video.For complete transcript, click here. || HST-SM4-PROMO-Fall-08-MPEG400402_print.jpg (1024x576) [71.4 KB] || HST-SM4-PROMO-Fall-08-MPEG4_web.png (320x180) [199.3 KB] || HST-SM4-PROMO-Fall-08-MPEG4_thm.png (80x40) [13.6 KB] || HST-SM4-PROMO-Fall-08_1_appletv.m4v (1280x720) [35.4 MB] || HST-SM4-PROMO-Fall-08_1_1280x720.wmv (1280x720) [31.7 MB] || HST-SM4-PROMO-Fall-08_1.webm (960x540) [32.6 MB] || HST-SM4-PROMO-Fall-08_1_prores.mov (1280x720) [814.7 MB] || HST-SM4-PROMO-Fall-08_1_youtube_hq.mov (1280x720) [137.3 MB] || HST-SM4-PROMO-Fall-08_1_ipod_sm.mp4 (320x240) [13.7 MB] || ", "hits": 31 }, { "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": 66 }, { "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": 290 }, { "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": 177 }, { "id": 10117, "url": "https://svs.gsfc.nasa.gov/10117/", "result_type": "Produced Video", "release_date": "2007-07-21T00:00:00-04:00", "title": "The Hubble Space Telescope (HST)", "description": "Launched in 1990, the Hubble Space Telescope (HST) has revolutionized astronomy by providing unprecedented views of the Universe. Hubble's spectral range extends from the ultraviolet, through the visible, and into the near-infrared. NASA will fly a servicing mission in 2008 to bring two new science instruments to Hubble - the Cosmic Origins Spectrograph and the Wide Field Camera 3. New gyros and batteries will extend Hubble's life through 2013. || ", "hits": 143 }, { "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": 213 }, { "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": 55 }, { "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": 207 }, { "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": 1691 }, { "id": 10133, "url": "https://svs.gsfc.nasa.gov/10133/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "The Helium Atom", "description": "Helium nuclei were created in the Big Bang and contain two protons and two neutrons each. Helium is the second most abundant element, comprising roughly one quarter of the mass of the Universe. This animation zooms into a standard helium atom, showing its protons (green), neutrons (white), and electrons (blue). || ", "hits": 187 }, { "id": 10135, "url": "https://svs.gsfc.nasa.gov/10135/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "Dark Energy Expands the Universe", "description": "It is believed that after the Big Bang, the universe originally decelerated in its expansion, but then 'changed gears' and began to accelerate. The unknown force causing this recent acceleration is dubbed the 'Dark Energy.' This visualization flies through a series of galaxy clusters, the largerst gravitationally-bound objects in the Universe. || ", "hits": 348 }, { "id": 10137, "url": "https://svs.gsfc.nasa.gov/10137/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "Brane Theory of Multiple Dimensions", "description": "This animation attempts to convey the Brane Theory of Multiple Dimensions in which there are multiple universes, the touching of any two causing an event such as the Big Bang. || ", "hits": 592 }, { "id": 10139, "url": "https://svs.gsfc.nasa.gov/10139/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "Black Hole Accretion Disk", "description": "A black hole is a massive object whose gravitational field is so intense that no light (electromagnetic radiation) can escape it. Around many black holes is an accretion disk of material emitting energy as it falls into the black hole. This animation shows a cutaway of the accretion disk. The gap between the accretion disk and the black hole represents the innermost orbit matter can be in before plunging into the black hole. The radius of this innermost orbit depends on whether the black hole is rotating or not. If the black hole is rotating, material can orbit in more closely, causing the material to move faster than if the black hole is not rotating. || ", "hits": 306 }, { "id": 10140, "url": "https://svs.gsfc.nasa.gov/10140/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "Merging Black Holes", "description": "A black hole is a massive object whose gravitational field is so intense that no light (electromagnetic radiation) can escape it. When two orbiting black holes merge, a massive amount of energy is released in the form of jets. Meanwhile, the movement of these massive bodies disturbs the fabric of space-time around them, sending ripples of gravitational waves radiating outward. These waves are predicted by Einstein's theory of general relativity, but have yet to be directly detected. || ", "hits": 901 }, { "id": 10141, "url": "https://svs.gsfc.nasa.gov/10141/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "Matter Rides a Wave Around a Black Hole", "description": "A black hole is a massive object whose gravitational field is so intense that no light (electromagnetic radiation) can escape it. Researchers have seen evidence of hot iron gas riding upon waves of spacetime around black holes. This animation paints an intriguing image of how a spinning black hole can drag the very fabric of space around with it. || ", "hits": 93 }, { "id": 10142, "url": "https://svs.gsfc.nasa.gov/10142/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "Gravitational Waves from Black Holes", "description": "A gravitational wave is a theoretical fluctuation in the curvature of spacetime caused by the movement of incredibly massive objects. In this animation, two massive black holes orbit each other, creating gravitational waves. || ", "hits": 103 }, { "id": 10143, "url": "https://svs.gsfc.nasa.gov/10143/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "Millisecond Pulsar with Gravitational Waves", "description": "A pulsar is generally believed to be a rapidly rotating neutron star that emits pulses of radiation (such as x-rays and radio waves) at known regular intervals. A millisecond pulsar is one with a rotational period in the range of 1-10 milliseconds. As the pulsar picks up speed through accretion, it distorts due to subtle changes in the crust. Such slight distortion is enough to produce gravitational waves. Material flowing onto the pulsar surface from its companion star tends to quicken the spin, but the loss of energy to gravitational waves tends to slow the spin. This competition between forces may reach an equilibrium, setting a natural speed limit for millisecond pulsars beyond which they cannot spin faster. || ", "hits": 103 }, { "id": 10144, "url": "https://svs.gsfc.nasa.gov/10144/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "Millisecond Pulsar with Magnetic Field Structure", "description": "A pulsar is a rapidly rotating neutron star that emits pulses of radiation (such as X-rays and radio waves) at regular intervals. A millisecond pulsar is one with a rotational period between 1 and 10 milliseconds, or from 60,000 to 6,000 revolutions per minute. Pulsars form in supernova explosions, but even newborn pulsars don’t spin at millisecond speeds, and they gradually slow down with age. If, however, a pulsar is a member of a binary system with a normal star, gas transferred from the companion can spin up an old, slow pulsar to the millisecond range. || ", "hits": 633 }, { "id": 10145, "url": "https://svs.gsfc.nasa.gov/10145/", "result_type": "Produced Video", "release_date": "2007-07-03T00:00:00-04:00", "title": "Cepheid Variable in Spiral Galaxy", "description": "A Cepheid is a star that varies in light intensity over regular, measurable periods. The period of pulsation is directly related to a Cepheid's intrinsic brightness making observations of these stars a powerful tool for determining distance. This animation shows a Cepheid variable star varying in brightness in the arm of a spiral galaxy. || ", "hits": 126 } ] }