Watch this video on the NASA.gov Video YouTube channel.
", "items": [ { "id": 264328, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 419265, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012300/a012392/MarsCloudsUltravioletPreview.jpg", "filename": "MarsCloudsUltravioletPreview.jpg", "media_type": "Image", "alt_text": "Ultraviolet images from NASA's Mars Atmosphere and Volatile Evolution mission, MAVEN, were used to make this movie of rapid cloud formation on Mars. 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Watch this video on the NASA.gov Video YouTube channel.", "width": 800, "height": 800, "pixels": 640000 } }, { "id": 264327, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 419266, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012300/a012392/IUVS3CloudMovie.webm", "filename": "IUVS3CloudMovie.webm", "media_type": "Movie", "alt_text": "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.", "width": 960, "height": 540, "pixels": 518400 } } ], "extra_data": {} }, { "id": 332276, "url": "https://svs.gsfc.nasa.gov/12392/#media_group_332276", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "Images from MAVEN's Imaging UltraViolet Spectrograph were used to make this movie of rapid cloud formation on Mars on July 9-10, 2016. The ultraviolet colors of the planet have been rendered in false color, to show what we would see with ultraviolet-sensitive eyes. The movie uses four MAVEN images to show about 7 hours of Mars rotation during this period, and interleaves simulated views that would be seen between the four images. Mars' day is similar to Earth’s, so the movie shows just over a quarter day. The left part of the planet is in morning and the right side in afternoon. Mars’ prominent volcanoes, topped with white clouds, can be seen moving across the disk. Mars’ tallest volcano, Olympus Mons, appears as a prominent dark region near the top of the images, with a small white cloud at the summit that grows during the day. Olympus Mons appears dark because the volcano rises up above much of the hazy atmosphere which makes the rest of the planet appear lighter. Three more volcanoes appear in a diagonal row, with their cloud cover merging to span up to a thousand miles by the end of the day. These images are particularly interesting because they show how rapidly and extensively the clouds topping the volcanoes form in the afternoon. Similar processes occur at Earth, with the flow of winds over mountains creating clouds. 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Lepsch", "employer": "ADNET Systems, Inc." } ] } ], "missions": [ "MAVEN: Mars Atmosphere and Volatile EvolutioN" ], "series": [ "MAVEN", "MAVEN Science Videos" ], "tapes": [], "papers": [], "datasets": [], "nasa_science_categories": [ "Planets & Moons" ], "keywords": [ "Atmosphere", "Cloud Cover", "Clouds", "Earth Science", "Mars", "MAVEN", "Science" ], "recommended_pages": [], "related": [ { "id": 12986, "url": "https://svs.gsfc.nasa.gov/12986/", "page_type": "Produced Video", "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. || ", "release_date": "2018-07-23T11:00:00-04:00", "update_date": "2023-11-09T12:29:16.589026-05:00", "main_image": { "id": 402584, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012900/a012986/Mars_Proton_Aurora.jpg", "filename": "Mars_Proton_Aurora.jpg", "media_type": "Image", "alt_text": "GRAPHIC - Solar wind protons undergo a series of charge exchanges to slip past the bow shock, causing a proton aurora.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 4370, "url": "https://svs.gsfc.nasa.gov/4370/", "page_type": "Visualization", "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] || ", "release_date": "2015-11-05T14:00:00-05:00", "update_date": "2025-01-05T22:49:15.588166-05:00", "main_image": { "id": 439148, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004370/final_ions01.4300_print.jpg", "filename": "final_ions01.4300_print.jpg", "media_type": "Image", "alt_text": "Movie without music and titles. Available for download in up to 4k resolution.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 20223, "url": "https://svs.gsfc.nasa.gov/20223/", "page_type": "Animation", "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. || ", "release_date": "2015-09-02T11:00:00-04:00", "update_date": "2023-05-03T13:49:24.814630-04:00", "main_image": { "id": 446811, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020200/a020223/MAVEN_StellarOccultation_Thumbnail.png", "filename": "MAVEN_StellarOccultation_Thumbnail.png", "media_type": "Image", "alt_text": "MAVEN observes a stellar occultation with its IUVS instrument. By splitting apart the light of setting stars, MAVEN can determine the composition of the Martian atmosphere.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 11295, "url": "https://svs.gsfc.nasa.gov/11295/", "page_type": "Produced Video", "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. || ", "release_date": "2013-06-13T11:00:00-04:00", "update_date": "2023-05-03T13:52:04.787227-04:00", "main_image": { "id": 464471, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011295/G2013-028_MAVEN_IUVS_MASTER01727_print.jpg", "filename": "G2013-028_MAVEN_IUVS_MASTER01727_print.jpg", "media_type": "Image", "alt_text": "MAVEN will use its Imaging Ultraviolet Spectrograph (IUVS) to study the upper atmosphere of Mars in unprecedented detail, helping scientists to determine what happened to the planet's ancient atmosphere - and its liquid water.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.", "width": 1024, "height": 576, "pixels": 589824 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }