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    "results": [
        {
            "id": 12986,
            "url": "https://svs.gsfc.nasa.gov/12986/",
            "result_type": "Produced Video",
            "release_date": "2018-07-23T11:00:00-04:00",
            "title": "Mars Proton Aurora",
            "description": "On Earth, the northern and southern lights occur when the solar wind (electrically charged particles from the Sun) follow our planet's geomagnetic field lines to the poles and collide with the upper atmosphere. Mars lacks a global magnetic field, so instead the solar wind piles up in front of Mars in a bow shock, which blocks charged particles from reaching the bulk of the atmosphere. However, in a process first observed by the MAVEN mission, some solar wind protons can slip past the bow shock by first bonding with electrons from the Mars upper atmosphere to form hydrogen atoms. Because these hydrogen atoms are electrically neutral, they can pass through the bow shock and go on to create an ultraviolet proton aurora on the dayside of Mars.Learn more about MAVEN's observation of a proton aurora at Mars. || ",
            "hits": 98
        },
        {
            "id": 12392,
            "url": "https://svs.gsfc.nasa.gov/12392/",
            "result_type": "Produced Video",
            "release_date": "2016-10-17T03:00:00-04:00",
            "title": "Ultraviolet Mars Reveals Cloud Formation",
            "description": "Ultraviolet images from NASA's Mars Atmosphere and Volatile Evolution mission, MAVEN, were used to make this movie of rapid cloud formation on Mars. Watch this video on the NASA.gov Video YouTube channel. || MarsCloudsUltravioletPreview.jpg (800x800) [87.2 KB] || MarsCloudsUltravioletPreview_searchweb.png (320x180) [83.3 KB] || MarsCloudsUltravioletPreview_thm.png (80x40) [6.8 KB] || IUVS3CloudMovie.mov (800x800) [8.4 MB] || IUVS3CloudMovie_large.mp4 (800x800) [11.1 MB] || IUVS3CloudMovie.webm (960x540) [4.3 MB] || ",
            "hits": 58
        },
        {
            "id": 12266,
            "url": "https://svs.gsfc.nasa.gov/12266/",
            "result_type": "Produced Video",
            "release_date": "2016-05-24T14:00:00-04:00",
            "title": "Mars Evolution from Wet to Dry for Planetariums",
            "description": "Mars transitions from a wet planet early in its history to the dry world that we see today. This animation has been formatted for planetarium full-dome presentations, rendered for unidirectional domes in a variety of resolutions, up to 4K. || Wet_to_Dry_Mars_Edited.jpg (2048x2048) [1.6 MB] || Wet_to_Dry_Mars_1K.mp4 (1024x1024) [76.5 MB] || 2048x2048_1x1_30p (2048x2048) [0 Item(s)] || 12266_Wet_To_Dry_Mars_Planetarium.webm (720x720) [2.9 MB] || Wet_to_Dry_Mars_2K.mp4 (2048x2048) [190.7 MB] || 4096x4096_1x1_30p (4096x4096) [0 Item(s)] || 12266_Wet_To_Dry_Mars_Planetarium.mov (4096x4096) [4.8 GB] || ",
            "hits": 133
        },
        {
            "id": 4414,
            "url": "https://svs.gsfc.nasa.gov/4414/",
            "result_type": "Visualization",
            "release_date": "2016-03-21T12:30:00-04:00",
            "title": "The Mars Fleet",
            "description": "A fleet of landers, rovers, and orbiters is exploring the Red Planet, providing mission controllers with a remote presence on Mars. This visualization is available for download in 4K Ultra HD. || MarsFleetClosePreview.jpg (1920x1080) [168.3 KB] || MarsFleetClosePreview_searchweb.png (320x180) [55.1 KB] || MarsFleetClosePreview_thm.png (80x40) [5.4 KB] || Mars_Fleet_SVS_4414.00015_searchweb.png (320x180) [66.1 KB] || mars_fleet_Mar2016_4k_2160p30.00015_searchweb.png (320x180) [61.1 KB] || mars_fleet_Mar2016_HD_1080p60.mp4 (1920x1080) [14.9 MB] || version1 (1920x1080) [0 Item(s)] || mars_fleet_Jan2016_1080p30.webm (1920x1080) [4.3 MB] || mars_fleet_Mar2016_4k_2160p30.mp4 (3840x2160) [48.6 MB] || mars_fleet_Mar2016_640x360.m4v (640x360) [6.7 MB] || version1 (3840x2160) [0 Item(s)] || Mars_Fleet_SVS_4414.mov (1920x1080) [1.2 GB] || Mars_Fleet_SVS_4414_4k.mov (3840x2160) [4.6 GB] || mars-fleet-and-landings.hwshow || mars_solar_wind_compiled.hwshow || ",
            "hits": 118
        },
        {
            "id": 4370,
            "url": "https://svs.gsfc.nasa.gov/4370/",
            "result_type": "Visualization",
            "release_date": "2015-11-05T14:00:00-05:00",
            "title": "Solar Wind Strips the Martian Atmosphere",
            "description": "Scientists have long suspected the solar wind of stripping the Martian upper atmosphere into space, turning Mars from a blue world to a red one. Now, NASA's MAVEN orbiter is observing this process in action, providing significant data on solar wind erosion at Mars.Watch this video on the NASA Goddard YouTube channel.Complete transcript available.This video is also available on our YouTube channel. || MarsAtmoLossExplainPreview.jpg (1920x1080) [993.6 KB] || APPLE_TV_4370_MAVEN_Mars_Atmo_Loss_appletv_subtitles.m4v (1280x720) [53.7 MB] || WEBM_4370_MAVEN_Mars_Atmo_Loss_APR.webm (960x540) [44.7 MB] || 4370_MAVEN_Mars_Atmo_Loss_appletv.m4v (1280x720) [53.7 MB] || NASA_TV_4370_MAVEN_Mars_Atmo_Loss.mpeg (1280x720) [369.5 MB] || 4370_MAVEN_Mars_Atmo_Loss_APR_Output.en_US.srt [2.3 KB] || 4370_MAVEN_Mars_Atmo_Loss_APR_Output.en_US.vtt [2.3 KB] || LARGE_MP4_4370_MAVEN_Mars_Atmo_Loss_large.mp4 (3840x2160) [111.3 MB] || YOUTUBE_HQ_4370_MAVEN_Mars_Atmo_Loss_youtube_hq.mov (3840x2160) [2.2 GB] || 4370_MAVEN_Mars_Atmo_Loss_APR.mov (3840x2160) [5.9 GB] || ",
            "hits": 313
        },
        {
            "id": 4393,
            "url": "https://svs.gsfc.nasa.gov/4393/",
            "result_type": "Visualization",
            "release_date": "2015-11-05T14:00:00-05:00",
            "title": "Solar Wind and Mars Bow Shock",
            "description": "Simulation of the solar wind at Mars compared with MAVEN observations, showing the predicted bow shock. Available for download in up to 4k resolution. || final_shock01.2500_print.jpg (1024x576) [205.3 KB] || final_shock01.2500_searchweb.png (320x180) [100.4 KB] || final_shock01.2500_thm.png (80x40) [6.6 KB] || final_shock01_1920x1080_60fps.mp4 (1920x1080) [66.6 MB] || APPLE_TV_4393_Mars_Solar_Wind_Bow_Shock_1920x1080_appletv.m4v (1280x720) [19.0 MB] || WEBM_4393_Mars_Solar_Wind_Bow_Shock_1920x1080.webm (960x540) [15.1 MB] || 1920x1080_16x9_60p (1920x1080) [0 Item(s)] || NASA_TV_4393_Mars_Solar_Wind_Bow_Shock_1920x1080.mpeg (1280x720) [128.4 MB] || PRORES_B-ROLL_4393_Mars_Solar_Wind_Bow_Shock_1920x1080_prores.mov (1280x720) [537.1 MB] || 3840x2160_16x9_60p (3840x2160) [0 Item(s)] || 4393_Mars_Solar_Wind_Bow_Shock_1920x1080.mov (1920x1080) [1.0 GB] || final_shock01_4k_60fps.mp4 (3840x2160) [214.3 MB] || ",
            "hits": 68
        },
        {
            "id": 11992,
            "url": "https://svs.gsfc.nasa.gov/11992/",
            "result_type": "Produced Video",
            "release_date": "2015-09-02T11:00:00-04:00",
            "title": "Mapping Mars' Upper Atmosphere",
            "description": "Principal Investigator Bruce Jakosky talks about MAVEN’s science observations at Mars.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here. || Bruce_Jakosky_G2015-007_thumbnail.png (1920x1080) [1.8 MB] || Bruce_Jakosky_G2015-007_thumbnail_print.jpg (1024x576) [100.6 KB] || Bruce_Jakosky_G2015-007_thumbnail_searchweb.png (320x180) [90.5 KB] || Bruce_Jakosky_G2015-007_thumbnail_thm.png (80x40) [7.2 KB] || APPLE_TV_G2015-007_MAVEN_Early_Sci_MASTER_appletv.m4v (1280x720) [123.4 MB] || WEBM_G2015-007_MAVEN_Early_Sci_MASTER.webm (960x540) [101.9 MB] || APPLE_TV_G2015-007_MAVEN_Early_Sci_MASTER_appletv_subtitles.m4v (1280x720) [123.5 MB] || NASA_TV_G2015-007_MAVEN_Early_Sci_MASTER.mpeg (1280x720) [846.9 MB] || G2015-007_MAVEN_Early_Sci_MASTER_Captions.en_US.srt [4.1 KB] || G2015-007_MAVEN_Early_Sci_MASTER_Captions.en_US.vtt [4.2 KB] || G2015-007_MAVEN_Early_Sci_MASTER_H264.mov (1920x1080) [1.7 GB] || NASA_PODCAST_G2015-007_MAVEN_Early_Sci_MASTER_ipod_sm.mp4 (320x240) [44.1 MB] || PRORES_B-ROLL_G2015-007_MAVEN_Early_Sci_MASTER_prores.mov (1280x720) [3.4 GB] || G2015-007_MAVEN_Early_Sci_MASTER.mov (1920x1080) [6.5 GB] || ",
            "hits": 29
        },
        {
            "id": 20222,
            "url": "https://svs.gsfc.nasa.gov/20222/",
            "result_type": "Animation",
            "release_date": "2015-09-02T11:00:00-04:00",
            "title": "MAVEN Deep Dip",
            "description": "MAVEN Deep Dip Animation || MavenDeepDip_00000_print.jpg (1024x576) [84.1 KB] || MavenDeepDip_00000_searchweb.png (320x180) [52.3 KB] || MavenDeepDip_00000_thm.png (80x40) [4.6 KB] || MavenDeepDip.webm (1920x1080) [3.5 MB] || 1920x1080_16x9_60p (1920x1080) [128.0 KB] || MavenDeepDip.mp4 (1920x1080) [16.2 MB] || MavenDeepDipH264.mov (1920x1080) [76.0 MB] || MavenDeepDip.mov (1920x1080) [1.6 GB] || ",
            "hits": 61
        },
        {
            "id": 20223,
            "url": "https://svs.gsfc.nasa.gov/20223/",
            "result_type": "Animation",
            "release_date": "2015-09-02T11:00:00-04:00",
            "title": "MAVEN Stellar Occultation",
            "description": "NASA's Mars Atmosphere and Volatile Evolution mission (MAVEN) is the first spacecraft specifically designed to study the upper atmosphere of Mars. MAVEN's goal is to determine how Mars lost its thick early atmosphere, and with it, its once hospitable climate.While previous Mars orbiters have peered down at the planet's surface, MAVEN is spending part of its time gazing at the stars, observing the Martian atmosphere through a series of stellar occultations. As Mars rolls beneath MAVEN, due to the spacecraft's own orbital motion, background stars rise and set behind the planet. Their light dims as it passes through the tenuous atmosphere, with specific gases absorbing specific wavelengths. MAVEN uses its Imaging Ultraviolet Spectrograph to break apart this light and see which wavelengths are absorbed, allowing it to determine atmospheric composition at varying altitudes. || ",
            "hits": 70
        },
        {
            "id": 10157,
            "url": "https://svs.gsfc.nasa.gov/10157/",
            "result_type": "Produced Video",
            "release_date": "2014-11-06T13:30:00-05:00",
            "title": "Voices of MAVEN",
            "description": "Members of NASA's Mars Atmosphere and Volatile EvolutioN mission (MAVEN) share their experiences of working on the project.For complete transcript, click here.Watch this video on the NASAexplorer YouTube channel. || Voices_of_MAVEN_thumbnail.png (1280x720) [1.4 MB] || Voices_of_MAVEN_thumbnail_web.jpg (320x180) [30.0 KB] || Voices_of_MAVEN_thumbnail_searchweb.png (320x180) [120.2 KB] || Voices_of_MAVEN_thumbnail_thm.png (80x40) [8.6 KB] || G2013-054_MAVEN_Voice_MASTER_appletv.webmhd.webm (960x540) [46.4 MB] || G2013-054_MAVEN_Voice_MASTER_1280x720.wmv (1280x720) [115.8 MB] || G2013-054_MAVEN_Voice_MASTER_appletv.m4v (960x540) [98.1 MB] || G2013-054_MAVEN_Voice_MASTER_appletv_subtitles.m4v (960x540) [98.0 MB] || G2013-054_MAVEN_Voice_MASTER_youtube_hq.mov (1280x720) [203.4 MB] || G2013-054_MAVEN_Voice_MASTER_nasaportal.mov (640x360) [95.1 MB] || G2013-054_MAVEN_Voice_MASTER_ipod_lg.m4v (640x360) [38.7 MB] || G2013-054_MAVEN_Voice.en_US.srt [4.0 KB] || G2013-054_MAVEN_Voice.en_US.vtt [3.8 KB] || G2013-054_MAVEN_Voice_MASTER_ipod_sm.mp4 (320x240) [20.8 MB] || G2013-054_MAVEN_Voice_MASTER_prores.mov (1280x720) [3.3 GB] || voices-of-maven.hwshow [212 bytes] || ",
            "hits": 17
        },
        {
            "id": 11714,
            "url": "https://svs.gsfc.nasa.gov/11714/",
            "result_type": "Produced Video",
            "release_date": "2014-10-17T06:00:00-04:00",
            "title": "Observing Comet Siding Spring at Mars",
            "description": "On October 19, 2014, Comet Siding Spring will make a remarkably close encounter with Mars, buzzing the Red Planet at just one third of the Earth-Moon distance. To witness this historic event, NASA has mobilized an entire fleet of rovers, orbiters, Earth observatories and space telescopes.For complete transcript, click here.Watch this video on the NASAexplorer YouTube channel. || Comet_SS_from_Mars.png (1920x1080) [2.4 MB] || Comet_SS_from_Mars_thm.png (80x40) [7.3 KB] || Comet_SS_from_Mars_web.png (320x180) [70.0 KB] || Comet_SS_from_Mars_searchweb.png (320x180) [70.0 KB] || G2014-091_Comet_SS_MASTER_appletv.m4v (960x540) [75.9 MB] || G2014-091_Comet_SS_MASTER_appletv_subtitles.m4v (960x540) [75.9 MB] || G2014-091_Comet_SS_MASTER_appletv.webm (960x540) [20.4 MB] || G2014-091_Comet_SS_MASTER_1280x720.wmv (1280x720) [87.6 MB] || G2014-091_Comet_SS_MASTER_nasaportal.mov (640x360) [74.4 MB] || G2014-091_Comet_SS_MASTER_youtube_hq.en_US.vtt [2.9 KB] || G2014-091_Comet_SS_MASTER_youtube_hq.en_US.srt [2.8 KB] || G2014-091_Comet_SS_MASTER_ipod_lg.m4v (640x360) [30.2 MB] || G2014-091_Comet_SS_MASTER_ipod_sm.mp4 (320x240) [16.3 MB] || G2014-091_Comet_SS_MASTER_H264.mov (1920x1080) [2.4 GB] || G2014-091_Comet_SS_MASTER_prores.mov (1280x720) [2.5 GB] || G2014-091_Comet_SS_MASTER_youtube_hq.mov (1920x1080) [230.1 MB] || G2014-091_Comet_SS_MASTER.mov (1920x1080) [7.6 GB] || ",
            "hits": 41
        },
        {
            "id": 4222,
            "url": "https://svs.gsfc.nasa.gov/4222/",
            "result_type": "Visualization",
            "release_date": "2014-10-16T11:00:00-04:00",
            "title": "Sun view of Comet Siding Spring and the Mars orbiting fleet",
            "description": "This visualization shows active spacecraft orbiting Mars and their relationship to Comet Siding Spring.   The comet passes  very close to Mars on  October 19, 2014.  The camera is looking from the direction of the Sun towards Mars.  The camera is fixed to Mars and the orbit trail of Mars goes off to the right.As Comet Siding-Spring makes its way through the Martian neighborhood it reaches the closest distance at about 18:32 UT.   Debris left by the comet follows behind the comet on the line representing where the comet was.  This derbis impacts Mars at about 20:08 UT.    Scientists and engineers are concerned that the derbis may harm the spacecraft.  Several of the spacecraft have executed orbital maneuvers to put them on the opposite side of Mars when the debris impacts. || ",
            "hits": 20
        },
        {
            "id": 20215,
            "url": "https://svs.gsfc.nasa.gov/20215/",
            "result_type": "Animation",
            "release_date": "2014-10-14T00:00:00-04:00",
            "title": "Comet Siding Spring and Mars",
            "description": "NASA's MAVEN spacecraft observes Comet Siding Spring during its encounter with Mars. || Comet_Passing_Mars_0072000702_print.jpg (1024x576) [65.5 KB] || Comet_Passing_Mars_00720_print.jpg (1024x576) [78.4 KB] || Comet_Passing_Mars_00720_searchweb.png (320x180) [56.8 KB] || Comet_Passing_Mars_00720_web.png (320x180) [56.8 KB] || Comet_Passing_Mars_00720_thm.png (80x40) [4.2 KB] || Comet_Passing_Mars_FINAL.mov (1920x1080) [1004.7 MB] || Comet_Passing_Mars_h264_FINAL.mov (1920x1080) [34.4 MB] || Comet_Passing_Mars_1080.mp4 (1920x1080) [13.7 MB] || CometPassing (1920x1080) [128.0 KB] || Comet_Passing_Mars_1080.webm (960x540) [2.1 MB] || ",
            "hits": 23
        },
        {
            "id": 4192,
            "url": "https://svs.gsfc.nasa.gov/4192/",
            "result_type": "Visualization",
            "release_date": "2014-10-09T14:00:00-04:00",
            "title": "Mars Fleet and Comet Siding Spring",
            "description": "This visualization shows NASA’s fleet of Mars orbiters, landers, and rovers during the planet’s close encounter with Comet Siding Spring. C/2013 A1, better known as Comet Siding Spring, will make a remarkably close pass of Mars on October 19, 2014. At closest approach, Comet Siding Spring will come within 82,000 miles of the Red Planet – just one-third of the distance from the Earth to the Moon. During the flyby, NASA will position its Mars fleet both to protect it from comet dust, and to make observations of the comet and its effects on the upper atmosphere of Mars. || ",
            "hits": 82
        },
        {
            "id": 4212,
            "url": "https://svs.gsfc.nasa.gov/4212/",
            "result_type": "Visualization",
            "release_date": "2014-09-30T15:00:00-04:00",
            "title": "Comet Siding Spring wide shots",
            "description": "These visualizations show MAVEN and Comet Siding Spring making their way through the solar system to a close encounter near Mars. Two wide angle views are included. The first one maintains a fixed camera above the ecliptic plane of the solar system. The second one moves the camera in a bit closer and more parallel with the ecliptic plane as the comet and MAVEN encounter the Martian region. || ",
            "hits": 15
        },
        {
            "id": 11603,
            "url": "https://svs.gsfc.nasa.gov/11603/",
            "result_type": "Produced Video",
            "release_date": "2014-09-17T01:00:00-04:00",
            "title": "Investigating the Martian Atmosphere",
            "description": "The Martian surface bears ample evidence of flowing water in its youth, from crater lakes and riverbeds to minerals that only form in water. But today Mars is cold and dry, and scientists think that the loss of Mars' water may have been caused by the loss of its early atmosphere. NASA's Mars Atmosphere and Volatile EvolutioN mission, or MAVEN, will be the first spacecraft devoted to studying the Red Planet's upper atmosphere, in an effort to understand how the Martian climate has changed over time. || ",
            "hits": 57
        },
        {
            "id": 4176,
            "url": "https://svs.gsfc.nasa.gov/4176/",
            "result_type": "Visualization",
            "release_date": "2014-09-04T12:00:00-04:00",
            "title": "MAVEN: Cruise Phase",
            "description": "The Mars Atmosphere and Volatile Evolution mission (MAVEN) spacecraft was launched on a 10 month journey to Mars on November 18, 2013.  MAVEN is expected to arrive in Mars orbit on Sept 21, 2014 EDT.   MAVEN's mission is to investigate the upper atmosphere of Mars and its interactions with the Sun and solar wind.  This will help scientists understand why Mars lost many volatile molecules form its atmosphere such as CO2, N2, and H2O.These visualizations show the path has taken from Earth to Mars.  There is a wide view from above the ecliptic plane and a view that slowly tilts down to about 45 degrees above the ecliptic plane. || ",
            "hits": 79
        },
        {
            "id": 4181,
            "url": "https://svs.gsfc.nasa.gov/4181/",
            "result_type": "Visualization",
            "release_date": "2014-09-04T12:00:00-04:00",
            "title": "MAVEN: Insertion Orbit",
            "description": "The Mars Atmosphere and Volatile Evolution mission (MAVEN) spacecraft was launched on a 10 month journey to Mars on November 18, 2013. MAVEN is expected to arrive in Mars orbit on Sept 21, 2014 EDT. MAVEN's mission is to investigate the upper atmosphere of Mars and its interactions with the Sun and solar wind. This will help scientists understand why Mars lost many volatile molecules form its atmosphere such as CO2, N2, and H2O.This visualization shows MAVEN's approach and orbit insertion around Mars.   MAVEN's initial orbit is highly elliptical.  The tail behind MAVEN changes to red to indicate the period during which thrusters are fired for orbit insertion.  A separate visualization shows the transition from the insertion orbit to the more circular science orbit. || ",
            "hits": 43
        },
        {
            "id": 4190,
            "url": "https://svs.gsfc.nasa.gov/4190/",
            "result_type": "Visualization",
            "release_date": "2014-09-04T12:00:00-04:00",
            "title": "MAVEN: Science Orbit",
            "description": "This visualization shows how the MAVEN spacecraft orbit changes as it progresses from the initial, highly elliptical entry orbit to a somewhat less elliptical orbit and finally to the science orbit. || ",
            "hits": 94
        },
        {
            "id": 11636,
            "url": "https://svs.gsfc.nasa.gov/11636/",
            "result_type": "Produced Video",
            "release_date": "2014-09-04T12:00:00-04:00",
            "title": "Targeting Mars",
            "description": "If you want to send a spacecraft from Earth to Mars, how would you get it there? You can't aim straight at the Red Planet, because it's moving around the Sun significantly slower than the Earth. Instead, you'll have to wait for up to 26 months for a launch window, then carefully aim at a moving target. In November, 2013, the controllers of NASA's MAVEN (Mars Atmosphere and Volatile EvolutioN) spacecraft did just that. When MAVEN arrives, it will be the first spacecraft to study Mars's upper atmosphere in detail, helping scientists understand how Mars changed from a wet planet early in its history to the cold, dry world we see today. || ",
            "hits": 66
        },
        {
            "id": 11037,
            "url": "https://svs.gsfc.nasa.gov/11037/",
            "result_type": "Produced Video",
            "release_date": "2013-11-05T11:00:00-05:00",
            "title": "MAVEN: Mars Atmospheric Loss",
            "description": "When you take a look at Mars, you probably wouldn't think that it looks like a nice place to live. It's dry, it's dusty, and there's practically no atmosphere. But some scientists think that Mars may have once looked like a much nicer place to live, with a thicker atmosphere, cloudy skies, and possibly even liquid water flowing over the surface. So how did Mars transform from a warm, wet world to a cold, barren desert? NASA's MAVEN spacecraft will give us a clearer idea of how Mars lost its atmosphere (and thus its water), and scientists think that several processes have had an impact.Learn more about these processes in the videos below! || ",
            "hits": 237
        },
        {
            "id": 11295,
            "url": "https://svs.gsfc.nasa.gov/11295/",
            "result_type": "Produced Video",
            "release_date": "2013-06-13T11:00:00-04:00",
            "title": "MAVEN Imaging Ultraviolet Spectrograph",
            "description": "The philosophy of NASA's Mars Program has been \"Follow the water,\" but \"Where did the atmosphere go?\" is still a lingering question. Although fluvial features such as dry riverbeds are visible on Mars, the atmosphere today is too thin to support liquid water, implying that Mars once had a thicker atmosphere that was lost to space. NASA's Mars Atmosphere and Volatile EvolutioN Mission, or MAVEN, will test this hypothesis. As part of its remote sensing instrument package, MAVEN's Imaging Ultraviolet Spectrograph (IUVS) will look at isotopic hydrogen ratios in the upper atmosphere of Mars, helping scientists to determine just how much water once flowed across the Red Planet. || ",
            "hits": 51
        },
        {
            "id": 11224,
            "url": "https://svs.gsfc.nasa.gov/11224/",
            "result_type": "Produced Video",
            "release_date": "2013-03-26T13:00:00-04:00",
            "title": "MAVEN Magnetometer",
            "description": "When you navigate with a compass you can orient yourself thanks to Earth's global magnetic field. But on Mars, if you were to walk around with a compass it would haphazardly point from one anomaly to another, because the Red Planet does not possess a global magnetosphere. Scientists think that this lack of a protective magnetic field may have allowed the solar wind to strip away the Martian atmosphere over billions of years, and now NASA's MAVEN spacecraft will study this process in detail with its pair of ring core fluxgate magnetometers. || ",
            "hits": 109
        },
        {
            "id": 11053,
            "url": "https://svs.gsfc.nasa.gov/11053/",
            "result_type": "B-Roll",
            "release_date": "2012-07-30T00:00:00-04:00",
            "title": "MAVEN Broadcast-Quality Spacecraft and Instrument Footage",
            "description": "This page contains broadcast-quality footage of the MAVEN spacecraft and science instruments. The MAVEN bus was built at Lockheed Martin Space Systems in Littleton, Colorado. MAVEN's science instruments were built at the Space Sciences Laboratory (SSL) at the University of California, Berkeley; at the Laboratory for Atmospheric and Space Physics (LASP) at the University of Colorado, Boulder; and at NASA's Goddard Space Flight Center in Greenbelt, Maryland. Launch operations were conducted at the Kennedy Space Center on Cape Canaveral, Florida. MAVEN was launched on November 18, 2013 and arrived at Mars on September 21, 2014 EDT. || ",
            "hits": 46
        },
        {
            "id": 11025,
            "url": "https://svs.gsfc.nasa.gov/11025/",
            "result_type": "Produced Video",
            "release_date": "2012-07-15T00:00:00-04:00",
            "title": "Mars Climate Transition Animations: \"Dry\" Mars to and from \"Wet\" Mars",
            "description": "These animations show various conceptual animations depicting a transition from a \"Wet\" Mars that may have existed long ago to the \"Dry\" Mars we see today. || ",
            "hits": 65
        },
        {
            "id": 11024,
            "url": "https://svs.gsfc.nasa.gov/11024/",
            "result_type": "Produced Video",
            "release_date": "2012-07-09T09:00:00-04:00",
            "title": "MAVEN Orbit Animations and Beauty Passes",
            "description": "This collection contains animations showing the MAVEN spacecraft in orbit around Mars, as well as MAVEN's overall orbit trajectory. || ",
            "hits": 31
        }
    ]
}