{ "count": 44, "next": null, "previous": null, "results": [ { "id": 14955, "url": "https://svs.gsfc.nasa.gov/14955/", "result_type": "Produced Video", "release_date": "2026-01-27T09:00:00-05:00", "title": "NASA Tests LISA Development Units", "description": "A prototype charge management device for the future LISA (Laser Interferometer Space Antenna) mission sits on a lab bench at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. The device will reduce the buildup of electric charge on the gold-platinum test masses that float freely inside each of the three LISA spacecraft. The University of Florida in Gainesville and Fibertek Inc. in McNair, Virginia, are developing the device. Credit: NASA/Dennis HenryAlt text: An instrument rests on a lab bench.Image description: A silver box with red and black connector caps on one side rests on a white lab bench with a blue mat on top. Three black cables connect to the box and another yellow cable curls around it. || GSFC_20250602_LISA_006584.jpg (8098x5399) [11.3 MB] || ", "hits": 153 }, { "id": 5591, "url": "https://svs.gsfc.nasa.gov/5591/", "result_type": "Visualization", "release_date": "2025-12-29T14:00:00-05:00", "title": "ICESat-2 Land Ice Height Change (2020-2025)", "description": "NASA’s ICESat-2 satellite measures the elevation of Earth’s surfaces – and two data products from the mission map the height of Antarctic and Greenland ice sheets, as well as how those ice sheets change over time. The ICESat-2 ATL14 data product provides a reference ice sheet surface, while ATL15 provides elevation changes to that surface through time.", "hits": 386 }, { "id": 14678, "url": "https://svs.gsfc.nasa.gov/14678/", "result_type": "Produced Video", "release_date": "2025-01-07T00:00:00-05:00", "title": "Astronauts Practice NICER Repair", "description": "On May 16, 2024, astronauts Don Pettit and Nick Hague practiced a repair for NICER (Neutron star Interior Composition Explorer), an X-ray telescope on the International Space Station. The training exercise took place in the (NBL) Neutral Buoyancy Laboratory at NASA’s Johnson Space Center in Houston.Before any spacewalk, astronauts rehearse activities in the NBL to simulate — as much as possible — the conditions under which they’ll complete the task in space.In May 2023, NICER developed a “light leak,” where unwanted sunlight began entering the instrument. The damage allows sunlight to reach the detectors during the station’s daytime, saturating sensors and interfering with NICER’s X-ray measurements. The damage does not impact nighttime observations.The NICER team developed a plan to cover the largest areas of damage using five patches, each shaped like a piece of pie, to be inserted into the instrument’s sunshades and locked in place. || ", "hits": 45 }, { "id": 14560, "url": "https://svs.gsfc.nasa.gov/14560/", "result_type": "Produced Video", "release_date": "2024-03-26T10:00:00-04:00", "title": "Installing NASA's Nancy Grace Roman Space Telescope Propulsion System - Timelapses", "description": "The construction of NASA's Nancy Grace Roman Space Telescope is fully underway now that the propulsion system is installed into the spacecraft bus. This video shows activity in the NASA Goddard Space Flight Center cleanroom, where technicians position the hexagonal spacecraft bus on the work platform called the Pantheon. The four fuel tanks on their deck are placed onto a specialized jack and lifted carefully into the spacecraft bus. This whole system is built to supply the tiny thrusters hidden by red caps on the propulsion tank system. The tanks supply hydrazine fuel to the thrusters. The observatory uses the thrusters to maneuver into the correct orbit after launch and make large movements once operational. || ", "hits": 283 }, { "id": 14170, "url": "https://svs.gsfc.nasa.gov/14170/", "result_type": "Produced Video", "release_date": "2022-08-10T10:00:00-04:00", "title": "NASA’s Fermi Confirms 'PeVatron' Supernova Remnant", "description": "Explore how astronomers located a supernova remnant that fires up protons to energies 10 times greater than the most powerful particle accelerator on Earth.Credit: NASA’s Goddard Space Flight CenterMusic: New Philosopher by Laurent Dury; Universal Production MusicWatch this video on the NASA Goddard YouTube channelComplete transcript available. || 14170-Found__A_PeVatron.01978_print.jpg (1024x576) [61.1 KB] || 14170-_PeVatron.webm (1920x1080) [15.1 MB] || 14170-_PeVatron.mp4 (1920x1080) [136.6 MB] || 14170-PeVatron.en_US.vtt [2.3 KB] || 14170-PeVatron.mov (1920x1080) [1.8 GB] || ", "hits": 220 }, { "id": 4984, "url": "https://svs.gsfc.nasa.gov/4984/", "result_type": "Visualization", "release_date": "2022-05-15T00:00:00-04:00", "title": "ICESat-2 Land Ice Height Change", "description": "At the whole ice sheet scale, this visualization shows the continued draw down of the major outlet glaciers in West Antarctica and in parts of East Antarctica between April 2019 and July 2021. Some areas show hints of blue, indicating places where the ice sheet surface has gone up, reflecting either increased snowfall or changes in ice dynamics.", "hits": 126 }, { "id": 14099, "url": "https://svs.gsfc.nasa.gov/14099/", "result_type": "Produced Video", "release_date": "2022-02-28T00:00:00-05:00", "title": "Black Hole Week Assets", "description": "This page will introduce you to the world, characters, colors, and fonts of Black Hole Week. NASA celebrated Black Hole Week in 2019, 2021 and May, 2022.The world of Black Hole Week is bold, colorful, and a bit retro. It's also populated by a fun bunch of characters, including a little blue explorer (called the \"Traveler\") and their black hole friends. Below, you'll find tons of helpful images, GIFs, and other materials to get you going if you want to join in!If you are having trouble downloading the ZIP or AI files, please contact Barb Mattson: barb.mattson@nasa.gov || ", "hits": 201 }, { "id": 31161, "url": "https://svs.gsfc.nasa.gov/31161/", "result_type": "Hyperwall Visual", "release_date": "2021-10-25T00:00:00-04:00", "title": "Shrinking Tropical Ice Areas", "description": "Ten selected false-color Landsat images from 1980 to 2020 show the progressive loss of ice from the highest part of the Surdiman Range, part of the Maoke ‘Snow’ Mountains in the Indonesian Province of Papua on the island of New Guinea. This location is about 4 degrees south of the Equator but the rocky peaks near Puncak Jaya (4884 m or 16,020 ft at the highest point) are known to have had extensive glacial ice cover for thousands of years. Excluding the small ice area once found near Ngga Pilimsit, from an initial ice area of ~6.3 km2 in 1980 near the highest peaks east of the vast Grasberg Mine, only about 0.3 km2 of glacial ice remains in these mountains. The imagery series also gives the approximate dates of when specific ice remnants disappeared. Each image in the time series has an area of about 16.9 x 9.5 km (10.5 x 5.9 mi). || v2-puncakjaya-time-series_00000_print.jpg (1024x576) [135.3 KB] || v2-puncakjaya-time-series_00000_searchweb.png (320x180) [87.4 KB] || v2-puncakjaya-time-series_00000_thm.png (80x40) [6.5 KB] || v2-puncakjaya-time-series_1080p30.mp4 (1920x1080) [24.3 MB] || v2-puncakjaya-time-series_1080p30.webm (1920x1080) [5.6 MB] || puncakjaya (3840x2160) [128.0 KB] || v2-puncakjaya-time-series_2160p30.mp4 (3840x2160) [58.3 MB] || ", "hits": 115 }, { "id": 40385, "url": "https://svs.gsfc.nasa.gov/gallery/arctic-campaigns-produced-videos/", "result_type": "Gallery", "release_date": "2019-08-23T00:00:00-04:00", "title": "Operation IceBridge Arctic Campaigns: Produced Videos ", "description": "No description available.", "hits": 19 }, { "id": 31050, "url": "https://svs.gsfc.nasa.gov/31050/", "result_type": "Hyperwall Visual", "release_date": "2019-08-14T00:00:00-04:00", "title": "Landsat View of a Disappearing Glacier in Iceland", "description": "Ice loss from 1973 to 2019 || Iceland_glacier_00000_print.jpg (1024x576) [104.7 KB] || Iceland_glacier_00000_searchweb.png (320x180) [93.2 KB] || Iceland_glacier_00000_thm.png (80x40) [6.6 KB] || Iceland_glacier_1080p30_2.mp4 (1920x1080) [25.4 MB] || Iceland_glacier_720p30.mp4 (1280x720) [12.6 MB] || Iceland_glacier_720p30.webm (1280x720) [4.1 MB] || Iceland_glacier_1080p30_h265-TEST.mp4 (1920x1080) [3.8 MB] || 5760x3240_16x9_30p (5760x3240) [128.0 KB] || Iceland_glacier_2160p30.mp4 (3840x2160) [81.4 MB] || ", "hits": 91 }, { "id": 31044, "url": "https://svs.gsfc.nasa.gov/31044/", "result_type": "Hyperwall Visual", "release_date": "2019-06-17T14:00:00-04:00", "title": "Hubble Observations of the Red Planet", "description": "Over the decades of its mission, the Hubble Space Telescope has observed our closest planetary neighbor, Mars, documenting its seasons, terrain, and storms. Hubble’s work complements that of spacecraft and lander missions to the Red Planet, making Mars the most observed world other than Earth. || STScI-H-MARS_hyperwall_print.jpg (1024x576) [61.9 KB] || STScI-H-MARS_hyperwall.png (3840x2160) [3.2 MB] || STScI-H-MARS_hyperwall_searchweb.png (320x180) [41.5 KB] || STScI-H-MARS_hyperwall_thm.png (80x40) [4.7 KB] || STScI-H-MARS_hyperwall-1280x720.mp4 (1280x720) [3.1 MB] || STScI-H-MARS_hyperwall-1920x1080.mp4 (1920x1080) [5.5 MB] || STScI-H-MARS_hyperwall-1920x1080.webm (1920x1080) [12.5 MB] || STScI-H-MARS_hyperwall-3840x2160.mp4 (3840x2160) [18.6 MB] || ", "hits": 115 }, { "id": 31014, "url": "https://svs.gsfc.nasa.gov/31014/", "result_type": "Hyperwall Visual", "release_date": "2018-12-14T00:00:00-05:00", "title": "Peru's Shrinking Tropical Ice Caps", "description": "Map of the region || PeruBaseMapCoropunaQuelccayaannosm_print.jpg (1024x574) [150.0 KB] || PeruBaseMapCoropunaQuelccayaannosm.png (4104x2304) [44.6 MB] || ", "hits": 31 }, { "id": 20282, "url": "https://svs.gsfc.nasa.gov/20282/", "result_type": "Animation", "release_date": "2018-07-30T11:00:00-04:00", "title": "Terraforming the Martian Atmosphere", "description": "One of the challenges of terraforming Mars is to increase its atmospheric pressure, which is currently less than 1% that of Earth. The Martian polar caps, minerals, and soil could all provide sources of carbon dioxide and water to thicken the atmosphere. Unfortunately, a new study by the MAVEN science team finds that processing all sources available on Mars would only increase the pressure to about 7% that of Earth, far short of what is needed.Learn more about this finding. || ", "hits": 190 }, { "id": 30866, "url": "https://svs.gsfc.nasa.gov/30866/", "result_type": "Hyperwall Visual", "release_date": "2017-03-22T00:00:00-04:00", "title": "TRAPPIST-1 Exoplanet Lineup", "description": "TRAPPIST-1 Exoplanets Lineup || ssc2017-01a_print.jpg (1024x512) [58.5 KB] || ssc2017-01a_searchweb.png (320x180) [29.4 KB] || ssc2017-01a_thm.png (80x40) [5.7 KB] || ssc2017-01a.tif (6000x3000) [4.1 MB] || trappist-1-exoplanet-lineup.hwshow [206 bytes] || ", "hits": 80 }, { "id": 12335, "url": "https://svs.gsfc.nasa.gov/12335/", "result_type": "Produced Video", "release_date": "2016-08-15T11:00:00-04:00", "title": "2016 Sea Ice Minimum Live Shots", "description": "Arctic Sea Ice Live Shot Roll-Ins || 12335_Sea_Ice_LS_Roll_Ins_Still.png (1275x716) [79.0 KB] || 12335_Sea_Ice_LS_Roll_Ins_Still_print.jpg (1024x575) [27.4 KB] || 12335_Sea_Ice_LS_Roll_Ins.webm (1280x720) [37.0 MB] || 12335_Sea_Ice_LS_Roll_Ins.mov (1280x720) [1.9 GB] || ", "hits": 75 }, { "id": 4436, "url": "https://svs.gsfc.nasa.gov/4436/", "result_type": "Visualization", "release_date": "2016-03-21T12:30:00-04:00", "title": "GMM-3 Mars Gravity Map", "description": "Scientists have used small fluctuations in the orbits of three NASA spacecraft to map the gravity field of Mars.Watch this video on the NASA Goddard YouTube channel.Complete transcript available.This video is also available on our YouTube channel. || MarsGravityMapYouTube.png (1920x1080) [7.9 MB] || MarsGravityMapYouTube.jpg (1920x1080) [706.6 KB] || APPLE_TV_G2016-003_Mars_Gravity_Map_MASTER_appletv.m4v (1280x720) [51.0 MB] || WEBM_G2016-003_Mars_Gravity_Map_MASTER.webm (960x540) [43.4 MB] || APPLE_TV_G2016-003_Mars_Gravity_Map_MASTER_appletv_appletv_subtitles.m4v (1280x720) [15.5 MB] || LARGE_MP4_G2016-003_Mars_Gravity_Map_MASTER_large.mp4 (1920x1080) [109.0 MB] || NASA_TV_G2016-003_Mars_Gravity_Map_MASTER.mpeg (1280x720) [362.0 MB] || G2016-003_Mars_Gravity_Map_MASTER_GoogOut.en_US.srt [1.8 KB] || G2016-003_Mars_Gravity_Map_MASTER_GoogOut.en_US.vtt [1.9 KB] || G2016-003_Mars_Gravity_Map_MASTER.mov (1920x1080) [2.9 GB] || ", "hits": 263 }, { "id": 11990, "url": "https://svs.gsfc.nasa.gov/11990/", "result_type": "Produced Video", "release_date": "2015-08-28T14:00:00-04:00", "title": "NASA On Air: NASA Sea Level Rise Team Zeros In On Greenland (8/28/2015)", "description": "LEAD: Detailed measurements from NASA satellites are yielding new perspectives on sea level rise.1. This visualization shows the sea level change between 1992 and 2014. Since 1992, seas around the world have risen an average of nearly 3 inches. Regional differences in sea levels are caused by ocean currents and natural long-term ocean cycles.2. Scientists estimate one-third of the ocean rise is caused by the melting of the Greenland and Antarctic ice shelves. The big concern now is that the ice sheets are ‘waking up’ to the warming climate and will contribute more and more to sea level rise in the coming decades.3. An intense research effort by NASA and others is now underway to measure and analyze how Greenland and Antarctica will respond to Earth's warmer air temperatures and the changing ocean currents along the edges of the ice shelves.TAG: Faster melting of the polar ice caps could mean sea rise of 3 feet or more by the end of the century. || NASAONAIR_Sea_Level_Rise-10-iPad3_print.jpg (1024x576) [92.3 KB] || NASAONAIR_Sea_Level_Rise-10-iPad3_searchweb.png (320x180) [67.4 KB] || NASAONAIR_Sea_Level_Rise-10-iPad3_thm.png (80x40) [5.9 KB] || NASAONAIR_Sea_Level_Rise-1_Weather_Channel_30_fps.mov (1920x1080) [493.1 MB] || NASAONAIR_Sea_Level_Rise-2_Weather_Channel_60_fps.mov (1280x720) [592.5 MB] || NASAONAIR_Sea_Level_Rise-3_NBC_Today.mov (1920x1080) [232.3 MB] || NASAONAIR_Sea_Level_Rise-4-WeatherChannel.wmv (1280x720) [8.8 MB] || NASAONAIR_Sea_Level_Rise-5-Accuweather.avi (1280x720) [6.7 MB] || NASAONAIR_Sea_Level_Rise-6_Baron_Services_MP4.mp4 (1920x1080) [23.8 MB] || NASAONAIR_Sea_Level_Rise-7_APR_422_1920_30.mov (1920x1080) [464.0 MB] || NASAONAIR_Sea_Level_Rise-8-iPad1.m4v (960x540) [13.7 MB] || NASAONAIR_Sea_Level_Rise-9-iPad2.m4v (1280x720) [7.2 MB] || NASAONAIR_Sea_Level_Rise-10-iPad3.m4v (1920x1080) [7.2 MB] || NASAONAIR_Sea_Level_Rise-10-iPad3.webm (1920x1080) [3.4 MB] || ", "hits": 38 }, { "id": 11760, "url": "https://svs.gsfc.nasa.gov/11760/", "result_type": "Produced Video", "release_date": "2015-03-31T11:00:00-04:00", "title": "A Once-Blue Planet", "description": "NASA research suggests an ocean once covered the surface of Mars. || c-1280.jpg (1280x720) [229.4 KB] || c-1024.jpg (1024x576) [157.9 KB] || c-1024_print.jpg (1024x576) [150.3 KB] || c-1024_searchweb.png (320x180) [80.7 KB] || c-1024_print_thm.png (80x40) [18.5 KB] || ", "hits": 82 }, { "id": 11820, "url": "https://svs.gsfc.nasa.gov/11820/", "result_type": "Produced Video", "release_date": "2015-03-20T14:00:00-04:00", "title": "IceBridge Kicks Off Campaign with \"New\" Aircraft", "description": "For complete transcript, click here. || OIB_Arctic_2015_kickoff_11820_appletv_print.jpg (1024x576) [84.6 KB] || OIB_Arctic_2015_kickoff_11820_appletv_searchweb.png (320x180) [77.9 KB] || OIB_Arctic_2015_kickoff_11820_appletv_web.png (320x180) [77.9 KB] || OIB_Arctic_2015_kickoff_11820_appletv_thm.png (80x40) [5.4 KB] || OIB_Arctic_2015_kickoff_11820_prores.mov (1280x720) [1.1 GB] || OIB_Arctic_2015_kickoff_11820_1280x720.wmv (1280x720) [27.9 MB] || OIB_Arctic_2015_kickoff_11820_appletv.m4v (960x540) [65.1 MB] || OIB_Arctic_2015_kickoff_11820_youtube_hq.mov (1920x1080) [262.6 MB] || OIB_Arctic_2015_kickoff_11820_appletv_subtitles.m4v (960x540) [65.0 MB] || OIB_Arctic_2015_kickoff_11820_720x480.wmv (720x480) [63.0 MB] || OIB_Arctic_2015_kickoff_11820_720x480.webm (720x480) [17.0 MB] || OIB_Aircraft.en_US.srt [3.5 KB] || OIB_Aircraft.en_US.vtt [3.4 KB] || OIB_Arctic_2015_kickoff_11820_ipod_sm.mp4 (320x240) [13.7 MB] || ", "hits": 14 }, { "id": 11796, "url": "https://svs.gsfc.nasa.gov/11796/", "result_type": "Produced Video", "release_date": "2015-03-05T14:00:00-05:00", "title": "Mars’ Ancient Ocean", "description": "NASA planetary scientists Geronimo Villanueva and Michael Mumma discuss their findings regarding the ancient ocean of Mars.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here. || Mars_Ocean_still_print.jpg (1024x576) [113.5 KB] || Mars_Ocean_still.png (1920x1080) [3.0 MB] || Mars_Ocean_still_web.jpg (320x180) [16.0 KB] || Mars_Ocean_still_searchweb.png (320x180) [86.4 KB] || Mars_Ocean_still_thm.png (80x40) [8.2 KB] || G2015-011_MarsOcean_MASTER_appletv.webm (960x540) [30.9 MB] || G2015-011_MarsOcean_MASTER_ipod_lg.m4v (640x360) [46.0 MB] || G2015-011_MarsOcean_MASTER_ipod_sm.mp4 (320x240) [24.8 MB] || G2015-011_MarsOcean_MASTER.en_US.srt [4.4 KB] || G2015-011_MarsOcean_MASTER.en_US.vtt [4.4 KB] || G2015-011_MarsOcean_MASTER_prores.mov (1280x720) [4.0 GB] || G2015-011_MarsOcean_MASTER_youtube_hq.mov (1280x720) [187.8 MB] || G2015-011_MarsOcean_MASTER_appletv.m4v (960x540) [116.1 MB] || G2015-011_MarsOcean_MASTER_1280x720.wmv (1280x720) [136.4 MB] || G2015-011_MarsOcean_MASTER_appletv_subtitles.m4v (960x540) [116.0 MB] || G2015-011_MarsOcean_MASTER_nasaportal.mov (640x360) [112.8 MB] || ", "hits": 692 }, { "id": 40179, "url": "https://svs.gsfc.nasa.gov/gallery/icesat2/", "result_type": "Gallery", "release_date": "2014-10-15T00:00:00-04:00", "title": "ICESat-2", "description": "The Ice, Cloud and land Elevation Satellite-2 will measure the height of Earth from space, creating a record of the planet’s elevation in unprecedented detail and precision. With high-resolution data from ICESat-2’s laser altimeter, scientists will track changes to Earth’s polar ice caps – regions that are a harbinger of warming temperatures worldwide. The mission will also take stock of forests, map ocean surfaces, track the rise of cities and measure everything in between. ICESat-2 continues key elevation observations begun by ICESat-1 (2003 to 2009) and Operation IceBridge (2009 through present), to provide a portrait of change in the beginning of the 21st century.\n\nFor more information, please visit the ICESat-2 website.", "hits": 622 }, { "id": 4215, "url": "https://svs.gsfc.nasa.gov/4215/", "result_type": "Visualization", "release_date": "2014-09-22T00:00:00-04:00", "title": "North Polar Sea Ice Minimum, 2014", "description": "Sea ice acts as an air conditioner for the planet, reflecting energy from the Sun. On September 17, the Arctic Sea ice reached its minimum extent for 2014 — at 1.94 million square miles (5.02 million square kilometers), it’s the sixth lowest extent of the satellite record. With warmer temperatures and thinner, less resilient ice, the Arctic sea ice is on a downward trend. The red line in the still image indicates the average ice extent over the 30 year period between 1981 and 2011. || ", "hits": 28 }, { "id": 3906, "url": "https://svs.gsfc.nasa.gov/3906/", "result_type": "Visualization", "release_date": "2012-02-07T12:40:00-05:00", "title": "Global Mass Balance from GRACE", "description": "In the first comprehensive satellite study of its kind, a University of Colorado Boulder-led team used NASA data to calculate how much Earth's melting land ice is adding to global sea level rise.Using satellite measurements from the NASA/German Aerospace Center Gravity Recovery and Climate Experiment (GRACE), the researchers measured ice loss in all of Earth's land ice between 2003 and 2010, with particular emphasis on glaciers and ice caps outside of Greenland and Antarctica. The total global ice mass lost from Greenland, Antarctica and all Earth's glaciers and ice caps over the period studied was about 4.3 trillion tons (1,000 cubic miles), adding about 12 millimeters (0.5 inches) to global sea level. That's enough ice to cover the United States 1.5 feet (0.5 meters) deep.About a quarter of the average annual ice loss came from glaciers and ice caps outside of Greenland and Antarctica (about 148 billion tons, or 39 cubic miles), while ice loss from Greenland and Antarctica and their peripheral ice caps and glaciers averaged roughly 385 billion tons (100 cubic miles) a year. Results of the study are published online Feb. 8 in the journal Nature.\"Earth is losing a huge amount of ice to the ocean annually, and these new results will help us answer important questions in terms of both sea rise and how the planet's cold regions are responding to global change,\" said University of Colorado Boulder physics professor John Wahr, who helped lead the study.\"The strength of GRACE is it sees all the mass in the system, even though its resolution isn't high enough to allow us to determine separate contributions from each individual glacier,\" said Wahr, also a fellow at the University of Colorado-headquartered Cooperative Institute for Research in Environmental Sciences. Traditional estimates of Earth's ice caps and glaciers have been made using ground measurements from relatively few glaciers to infer what all the world's unmonitored glaciers were doing. Only a few hundred of the roughly 200,000 glaciers worldwide have been monitored for longer than a decade.One unexpected study result from GRACE was that the estimated ice loss from high Asian mountain ranges like the Himalaya, the Pamir and the Tien Shan was only about 4 billion tons of ice annually. Some previous ground-based estimates of ice loss in these high Asian mountains have ranged up to 50 billion tons annually, Wahr said.\"The GRACE results in this region really were a surprise,\" said Wahr. \"One possible explanation is that previous estimates were based on measurements taken primarily from some of the lower, more accessible glaciers in Asia and were extrapolated to infer the behavior of higher glaciers. But unlike the lower glaciers, most of the high glaciers are located in very cold environments, and require greater amounts of atmospheric warming before local temperatures rise enough to cause significant melting. This makes it difficult to use low-elevation, ground-based measurements to estimate results from the entire system.\"\"This study finds that the world's small glaciers and ice caps in places like Alaska, South America and the Himalayas contribute about 0.4 millimeters (.02 inches) per year to sea level rise,\" said Tom Wagner, cryosphere program scientist at NASA Headquarters in Washington. \"While this is lower than previous estimates, it confirms that ice is being lost from around the globe, with just a few areas in precarious balance. The results sharpen our view of land ice melting, which poses the biggest, most threatening factor in future sea level rise.\"Launched in 2002, the twin GRACE satellites track changes in Earth's gravity field by noting minute changes in gravitational pull caused by regional variations in Earth's mass, which for periods of months to years is typically due to movements of water on Earth's surface. It does this by measuring changes in the distance between its two identical spacecraft to one-hundredth the width of a human hair. The spacecraft, developed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., are in the same orbit approximately 220 kilometers (137 miles) apart. || ", "hits": 144 }, { "id": 3910, "url": "https://svs.gsfc.nasa.gov/3910/", "result_type": "Visualization", "release_date": "2012-02-07T12:40:00-05:00", "title": "Ice Sheet Mass Balance from GRACE", "description": "In the first comprehensive satellite study of its kind, a University of Colorado Boulder-led team used NASA data to calculate how much Earth's melting land ice is adding to global sea level rise.Using satellite measurements from the NASA/German Aerospace Center Gravity Recovery and Climate Experiment (GRACE), the researchers measured ice loss in all of Earth's land ice between 2003 and 2010, with particular emphasis on glaciers and ice caps outside of Greenland and Antarctica. The total global ice mass lost from Greenland, Antarctica and all Earth's glaciers and ice caps over the period studied was about 4.3 trillion tons (1,000 cubic miles), adding about 12 millimeters (0.5 inches) to global sea level. That's enough ice to cover the United States 1.5 feet (0.5 meters) deep. About a quarter of the average annual ice loss came from glaciers and ice caps outside of Greenland and Antarctica (about 148 billion tons, or 39 cubic miles), while ice loss from Greenland and Antarctica and their peripheral ice caps and glaciers averaged roughly 385 billion tons (100 cubic miles) a year. Results of the study are published online Feb. 8 in the journal Nature.\"Earth is losing a huge amount of ice to the ocean annually, and these new results will help us answer important questions in terms of both sea rise and how the planet's cold regions are responding to global change,\" said University of Colorado Boulder physics professor John Wahr, who helped lead the study. \"The strength of GRACE is it sees all the mass in the system, even though its resolution isn't high enough to allow us to determine separate contributions from each individual glacier,\" said Wahr, also a fellow at the University of Colorado-headquartered Cooperative Institute for Research in Environmental Sciences. Traditional estimates of Earth's ice caps and glaciers have been made using ground measurements from relatively few glaciers to infer what all the world's unmonitored glaciers were doing. Only a few hundred of the roughly 200,000 glaciers worldwide have been monitored for longer than a decade. One unexpected study result from GRACE was that the estimated ice loss from high Asian mountain ranges like the Himalaya, the Pamir and the Tien Shan was only about 4 billion tons of ice annually. Some previous ground-based estimates of ice loss in these high Asian mountains have ranged up to 50 billion tons annually, Wahr said. \"The GRACE results in this region really were a surprise,\" said Wahr. \"One possible explanation is that previous estimates were based on measurements taken primarily from some of the lower, more accessible glaciers in Asia and were extrapolated to infer the behavior of higher glaciers. But unlike the lower glaciers, most of the high glaciers are located in very cold environments, and require greater amounts of atmospheric warming before local temperatures rise enough to cause significant melting. This makes it difficult to use low-elevation, ground-based measurements to estimate results from the entire system.\" \"This study finds that the world's small glaciers and ice caps in places like Alaska, South America and the Himalayas contribute about 0.4 millimeters (.02 inches) per year to sea level rise,\" said Tom Wagner, cryosphere program scientist at NASA Headquarters in Washington. \"While this is lower than previous estimates, it confirms that ice is being lost from around the globe, with just a few areas in precarious balance. The results sharpen our view of land ice melting, which poses the biggest, most threatening factor in future sea level rise.\" Launched in 2002, the twin GRACE satellites track changes in Earth's gravity field by noting minute changes in gravitational pull caused by regional variations in Earth's mass, which for periods of months to years is typically due to movements of water on Earth's surface. It does this by measuring changes in the distance between its two identical spacecraft to one-hundredth the width of a human hair. The spacecraft, developed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., are in the same orbit approximately 220 kilometers (137 miles) apart. || ", "hits": 347 }, { "id": 3911, "url": "https://svs.gsfc.nasa.gov/3911/", "result_type": "Visualization", "release_date": "2012-02-07T12:40:00-05:00", "title": "Mass Balance Change over India from GRACE", "description": "In the first comprehensive satellite study of its kind, a University of Colorado Boulder-led team used NASA data to calculate how much Earth's melting land ice is adding to global sea level rise.Using satellite measurements from the NASA/German Aerospace Center Gravity Recovery and Climate Experiment (GRACE), the researchers measured ice loss in all of Earth's land ice between 2003 and 2010, with particular emphasis on glaciers and ice caps outside of Greenland and Antarctica. The total global ice mass lost from Greenland, Antarctica and all Earth's glaciers and ice caps over the period studied was about 4.3 trillion tons (1,000 cubic miles), adding about 12 millimeters (0.5 inches) to global sea level. That's enough ice to cover the United States 1.5 feet (0.5 meters) deep. About a quarter of the average annual ice loss came from glaciers and ice caps outside of Greenland and Antarctica (about 148 billion tons, or 39 cubic miles), while ice loss from Greenland and Antarctica and their peripheral ice caps and glaciers averaged roughly 385 billion tons (100 cubic miles) a year. Results of the study are published online Feb. 8 in the journal Nature.\"Earth is losing a huge amount of ice to the ocean annually, and these new results will help us answer important questions in terms of both sea rise and how the planet's cold regions are responding to global change,\" said University of Colorado Boulder physics professor John Wahr, who helped lead the study. \"The strength of GRACE is it sees all the mass in the system, even though its resolution isn't high enough to allow us to determine separate contributions from each individual glacier,\" said Wahr, also a fellow at the University of Colorado-headquartered Cooperative Institute for Research in Environmental Sciences. Traditional estimates of Earth's ice caps and glaciers have been made using ground measurements from relatively few glaciers to infer what all the world's unmonitored glaciers were doing. Only a few hundred of the roughly 200,000 glaciers worldwide have been monitored for longer than a decade. One unexpected study result from GRACE was that the estimated ice loss from high Asian mountain ranges like the Himalaya, the Pamir and the Tien Shan was only about 4 billion tons of ice annually. Some previous ground-based estimates of ice loss in these high Asian mountains have ranged up to 50 billion tons annually, Wahr said. \"The GRACE results in this region really were a surprise,\" said Wahr. \"One possible explanation is that previous estimates were based on measurements taken primarily from some of the lower, more accessible glaciers in Asia and were extrapolated to infer the behavior of higher glaciers. But unlike the lower glaciers, most of the high glaciers are located in very cold environments, and require greater amounts of atmospheric warming before local temperatures rise enough to cause significant melting. This makes it difficult to use low-elevation, ground-based measurements to estimate results from the entire system.\" \"This study finds that the world's small glaciers and ice caps in places like Alaska, South America and the Himalayas contribute about 0.4 millimeters (.02 inches) per year to sea level rise,\" said Tom Wagner, cryosphere program scientist at NASA Headquarters in Washington. \"While this is lower than previous estimates, it confirms that ice is being lost from around the globe, with just a few areas in precarious balance. The results sharpen our view of land ice melting, which poses the biggest, most threatening factor in future sea level rise.\" Launched in 2002, the twin GRACE satellites track changes in Earth's gravity field by noting minute changes in gravitational pull caused by regional variations in Earth's mass, which for periods of months to years is typically due to movements of water on Earth's surface. It does this by measuring changes in the distance between its two identical spacecraft to one-hundredth the width of a human hair. The spacecraft, developed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., are in the same orbit approximately 220 kilometers (137 miles) apart. || ", "hits": 49 }, { "id": 10840, "url": "https://svs.gsfc.nasa.gov/10840/", "result_type": "Produced Video", "release_date": "2011-10-18T00:00:00-04:00", "title": "Tour Of The Cryosphere", "description": "Water doesn't flow here; it freezes. Snow falls often, and if it melts it is likely to freeze again and add to the accumulation of ice that can date back thousands of millennia. If you can see the ground, it is frozen. If you cannot see the ground, it could be sitting under ice miles thick, like in Antarctica. This is the cryosphere, those regions of Earth from the North and South poles to mountain ranges near the Equator where water is found in solid form. The cryosphere covers many landscapes, but remains dominated by the polar regions. A cover of floating sea ice cracks, shrinks and expands constantly over the Arctic. Sheets of ice cover the bases of mountain ranges and cling to craggy bedrock in Antarctica and Greenland—the two ice sheets alone account for 90 percent of the fresh water on the planet. These regions of the cryosphere are important to scientists because they regulate global climate and are seeing more dramatic climate-driven changes than other regions. The Arctic is warming faster than any spot on Earth while receding and accelerating glaciers in Antarctica and Greenland raise the concern of sea level rise. Watch in the narrated tour below how NASA uses its satellite fleet to observe the remote reaches of the cryosphere. || ", "hits": 68 }, { "id": 10739, "url": "https://svs.gsfc.nasa.gov/10739/", "result_type": "Produced Video", "release_date": "2011-05-12T16:00:00-04:00", "title": "Operation IceBridge Flies the Ice Caps", "description": "Ice caps are simply small versions of ice sheets, measuring in at a maximum area of 50,000 square kilometers (about 19,000 square miles). It's their small and thin stature that makes ice caps more prone to melt in a warming Arctic. Charles Webb of NASA's Goddard Space Flight Center in Greenbelt, Md., explains the importance of monitoring ice caps in the Canadian Arctic A few flights within NASA's Operation IceBridge — an airborne mission to monitor Earth's polar ice — are adding to the long-term record of ice cap changes. Such a record can provide insight into ice cap dynamics as well as provide an early-warning indicator of the impacts of climate change. || ", "hits": 28 }, { "id": 10762, "url": "https://svs.gsfc.nasa.gov/10762/", "result_type": "Produced Video", "release_date": "2011-04-23T00:00:00-04:00", "title": "NASA DLN Presents Earth Day with Landsat", "description": "These are excerpts from an Earth Day DLN webcast that features scientists and engineers discussing how the Landsat mission has helped us see and study our changing planet. || ", "hits": 6 }, { "id": 10734, "url": "https://svs.gsfc.nasa.gov/10734/", "result_type": "Produced Video", "release_date": "2011-03-15T00:00:00-04:00", "title": "Building a Bigger Bridge - OIB 2011 Preview", "description": "Operation IceBridge is heading back into the Arctic with two aircraft and the most sophisticated suite of instruments ever flown in polar regions. This year's mission will focus on sea ice thickness, the Canadian Ice Caps, Greenland ice sheet dynamics, and flyovers of the European Space Agency's CryoSat-2 ground validation sites. || ", "hits": 25 }, { "id": 40070, "url": "https://svs.gsfc.nasa.gov/gallery/70/", "result_type": "Gallery", "release_date": "2011-03-15T00:00:00-04:00", "title": "Operation IceBridge - Deprecated", "description": "IceBridge, a NASA field campaign currently in its 11th year, is the largest airborne survey of Earth's polar ice ever flown. It will yield an unprecedented three-dimensional view of Arctic and Antarctic ice sheets, ice shelves, and sea ice. These flights provide a yearly, multi-instrument look at the behavior of the rapidly changing features of both Arctic and Antarctic ice.\r\n\r\nData collected during IceBridge will help scientists bridge the gap in polar observations between NASA's Ice, Cloud and Land Elevation Satellite (ICESat) -- launched in 2003 -- and ICESat-2, launched September 15, 2018. ICESat stopped collecting science data in 2009, making IceBridge critical for ensuring a continuous series of observations.\r\n\r\nIceBridge uses airborne instruments to map Arctic and Antarctic areas once a year before the spring melt season takes hold. The first IceBridge flights were conducted in March/May 2009 over Greenland and in October/November 2009 over Antarctica. Other smaller airborne surveys around the world are also part of the IceBridge campaign.Photos and HD video clips", "hits": 58 }, { "id": 40005, "url": "https://svs.gsfc.nasa.gov/gallery/warmingworld-snapsfromspace/", "result_type": "Gallery", "release_date": "2010-03-01T00:00:00-05:00", "title": "Warming world: Snaps from space", "description": "No description available.", "hits": 84 }, { "id": 3573, "url": "https://svs.gsfc.nasa.gov/3573/", "result_type": "Visualization", "release_date": "2009-01-09T00:00:00-05:00", "title": "September 2007 Arctic Sea Ice vs 1979-2007 Average with Graph of 1979 to 2008 Ice Areas", "description": "Sea ice is frozen seawater floating on the surface of the ocean. Some sea ice is semi-permanent, persisting from year to year, and some is seasonal, melting and refreezing from season to season. The sea ice cover reaches its minimum extent at the end of each summer and the remaining ice is called the perennial ice cover. The 2007 Arctic summer sea ice reached the lowest extent of perennial ice cover on record. The area of the perennial ice has been steadily decreasing since the satellite record began in 1979, at a rate of about 10% per decade. But the 2007 minimum, reached on September 14, is about 38% lower than the climatological average. Such a dramatic loss has implications for ecology, climate and industry.This image compares the difference between the perennial sea ice minimum area on September 14, 2007 and the 1979-2007 average minimum sea ice. A graph inset in the top left corner shows the decline in annual sea ice area from 1979 through 2008. || ", "hits": 67 }, { "id": 10208, "url": "https://svs.gsfc.nasa.gov/10208/", "result_type": "Produced Video", "release_date": "2008-04-30T00:00:00-04:00", "title": "4D Ionosphere", "description": "NASA-funded researchers have unveiled a new '4D' live model of Earth's ionosphere at the Space Weather Workshop, Boulder, CO. Without leaving home, anyone can fly through the dynamic layer of ionized gases that encircles Earth at edge of space itself. All that's required is a connection to the Internet. Airline flight controllers can use this tool to plan long-distance flights over the poles, saving money and time for flyers. || ", "hits": 144 }, { "id": 3177, "url": "https://svs.gsfc.nasa.gov/3177/", "result_type": "Visualization", "release_date": "2005-06-21T00:00:00-04:00", "title": "Net Radiation Flux Compared to Clouds (WMS)", "description": "The Earth's climate is determined by energy transfer from the sun to the Earth's land, oceans, and atmosphere. As the Earth rotates, the sun lights up only part of the Earth at a time, and some of that incoming solar energy is reflected and some is absorbed, depending on type of area it lights. The amount of reflection and absorption is critical to the climate. An instrument named CERES orbits the Earth every 99 minutes and measures the reflected solar energy. This animation shows the net radiation flux within view of CERES during 29 orbits on June 20 and 21 of 2003. The net flux is the incoming solar flux minus the outgoing reflected (shortwave) and thermal (longwave) radiation. If the flux in a region is positive, the Earth is being warmed by the sun in that region, while cooling regions have a negative flux. It is clear from the animation that the most intensive heating occurs in ocean regions with few clouds, while the second most intense are cloud-free regions over vegetated land areas. Deserts, cloudy regions, and ice caps all reflect enough solar radiation to reduce the amount of heating. Regions of night are, of course, cooling regions because there is no incoming flux at all. || ", "hits": 45 }, { "id": 3106, "url": "https://svs.gsfc.nasa.gov/3106/", "result_type": "Visualization", "release_date": "2005-02-01T12:00:00-05:00", "title": "Instantaneous Net Radiation Flux (WMS)", "description": "The Earth's climate is determined by energy transfer from the sun to the Earth's land, oceans, and atmosphere. As the Earth rotates, the sun lights up only part of the Earth at a time, and some of that incoming solar energy is reflected and some is absorbed, depending on type of area it lights. The amount of reflection and absorption is critical to the climate. An instrument named CERES orbits the Earth every 99 minutes and measures the reflected solar energy. This animation shows the net radiation flux within view of CERES during 29 orbits on June 20 and 21 of 2003. The net flux is the incoming solar flux minus the outgoing reflected (shortwave) and thermal (longwave) radiation. If the flux in a region is positive, the Earth is being warmed by the sun in that region, while cooling regions have a negative flux. It is clear from the animation that the most intensive heating occurs in ocean regions with few clouds, while the second most intense are cloud-free regions over vegetated land areas. Deserts, cloudy regions, and ice caps all reflect enough solar radiation to reduce the amount of heating. Regions of night are, of course, cooling regions because there is no incoming flux at all. || ", "hits": 18 }, { "id": 20022, "url": "https://svs.gsfc.nasa.gov/20022/", "result_type": "Animation", "release_date": "2004-02-05T12:00:00-05:00", "title": "Ice Albedo: Bright White Reflects Light", "description": "This animation provides a close perspective of the relationship between ice and solar reflectivity. As glaciers, the polar caps, and icebergs (shown here) melt, less sunlight gets reflected into space. Instead, the oceans and land absorb the light, thus raising the overall temperature and adding energy to a vicious circle. || ", "hits": 237 }, { "id": 2306, "url": "https://svs.gsfc.nasa.gov/2306/", "result_type": "Visualization", "release_date": "2001-12-06T12:00:00-05:00", "title": "MOLA: Seasonal Snow Variations on Mars, Graph Showing Snow Variations at Both Poles, With Dates", "description": "This is a visualization of a series of graphs showing the seasonal changes in the Martian polar caps. This particular version includes both poles and the Martian year timestamp. || Seasonal Mars snow variations graph (with dates) showing both poles || a002306.00100_print.png (720x480) [269.8 KB] || mola_graph_pre.jpg (320x240) [6.5 KB] || a002306.webmhd.webm (960x540) [2.8 MB] || a002306.dv (720x480) [142.8 MB] || a002306.mp4 (640x480) [8.1 MB] || mola_graph.mpg (320x240) [220.3 KB] || ", "hits": 30 }, { "id": 2307, "url": "https://svs.gsfc.nasa.gov/2307/", "result_type": "Visualization", "release_date": "2001-12-06T12:00:00-05:00", "title": "MOLA: Seasonal Snow Variations on Mars, graph showing snow variations at both poles, without dates", "description": "This is a visualization of a series of graphs showing the seasonal changes in the Martian polar caps. This particular version includes both poles and no Martian year timestamp. || ", "hits": 12 }, { "id": 2308, "url": "https://svs.gsfc.nasa.gov/2308/", "result_type": "Visualization", "release_date": "2001-12-06T12:00:00-05:00", "title": "MOLA: Seasonal Snow Variations on Mars, graph showing snow variations at north pole, with dates", "description": "This is a visualization of a series of graphs showing the seasonal changes in the Martian polar caps. This particular version includes just the north pole and the Martian year timestamp. || ", "hits": 14 }, { "id": 2309, "url": "https://svs.gsfc.nasa.gov/2309/", "result_type": "Visualization", "release_date": "2001-12-06T12:00:00-05:00", "title": "MOLA: Seasonal Snow Variations on Mars, graph showing snow variations at north pole, without dates", "description": "This is a visualization of a series of graphs showing the seasonal changes in the Martian polar caps. This particular version includes just the north pole without the Martian year timestamp. || ", "hits": 6 }, { "id": 2310, "url": "https://svs.gsfc.nasa.gov/2310/", "result_type": "Visualization", "release_date": "2001-12-06T12:00:00-05:00", "title": "MOLA: Seasonal Snow Variations on Mars, clouds at both poles, with dates, without contours", "description": "This is a visualization of the clouds near the Marian polar caps measured using the MOLA instrument. This particular animation shows both poles, with dates, and without contours. || ", "hits": 17 }, { "id": 2311, "url": "https://svs.gsfc.nasa.gov/2311/", "result_type": "Visualization", "release_date": "2001-12-06T12:00:00-05:00", "title": "MOLA: Seasonal Snow Variations on Mars, clouds at both poles, with dates, with contours", "description": "This is a visualization of the clouds near the Marian polar caps measured using the MOLA instrument. This particular animation shows both poles, with dates, and with contours. || ", "hits": 10 }, { "id": 2312, "url": "https://svs.gsfc.nasa.gov/2312/", "result_type": "Visualization", "release_date": "2001-12-06T12:00:00-05:00", "title": "MOLA: Seasonal Snow Variations on Mars, clouds at north pole, with dates, without contours", "description": "This is a visualization of the clouds near the Marian polar caps measured using the MOLA instrument. This particular animation shows just the north pole, with dates, and without contours. || ", "hits": 6 }, { "id": 2313, "url": "https://svs.gsfc.nasa.gov/2313/", "result_type": "Visualization", "release_date": "2001-12-06T12:00:00-05:00", "title": "MOLA: Seasonal Snow Variations on Mars, Clouds at North Pole, With Dates and Contours", "description": "This is a visualization of the clouds near the Marian polar caps measured using the MOLA instrument. This particular animation shows just the north pole, with dates, and with contours. || ", "hits": 10 } ] }