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Tag Archives: CO2 frost
THEMIS: South polar ice features
THEMIS Image of the Day, June 9, 2017. Today’s VIS image shows more of the south polar cap at the end of southern summer. More THEMIS Images of the Day by geological topic.
Posted in Reports
Tagged Arizona State University, ASU, CO2 frost, frost, Mars Odyssey, NASA, south polar ice cap, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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THEMIS: South polar textures as local summer ends
THEMIS Image of the Day, June 8, 2017. This VIS image of the south pole was taken at the end of summer. Frost will soon start to form as the season transitions into fall. Fall in the southern hemisphere means … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, CO2 frost, CO2 ice, frost, Mars Odyssey, NASA, south polar ice cap, south polar residual cap, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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HiRISE: A winter’s view of a gullied crater
This is the location with the most impressive known gully activity in the Northern hemisphere. Gullies are active in the winter due to carbon dioxide frost, but northern winters are shorter and warmer than southern winters, so there is less … Continue reading
Posted in Reports
Tagged CO2 frost, frost, gullies, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: Gullies in winter shadow
This is an odd-looking image. It shows gullies during the winter while entirely in the shadow of the crater wall. Illumination comes only from the winter skylight. We acquire such images because gullies on Mars actively form in the winter … Continue reading
Posted in Reports
Tagged CO2 frost, defrosting, frost, gullies, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: How gas carves channels
A layer of dry ice covers the South Polar layered deposits every winter. In the spring, gas created from heating of the dry ice escapes through ruptures in the overlying seasonal ice, entraining material from the ground below. The gas … Continue reading
Posted in Reports
Tagged CO2 frost, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, south polar layered deposits, spiders, University of Arizona
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HRSC: Frost build-up near Mars north pole
This animated gif shows the build up of frosts in a 73 x 41 km section of the north polar ice cap of Mars between November and December 2004. The images were taken by the High Resolution Stereo Camera on … Continue reading
Posted in Reports
Tagged CO2 frost, DLR, ESA, European Space Agency, FU Berlin, High Resolution Stereo Camera, HRSC, Mars Express, MEX, north polar ice cap
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HiRISE: Painting with frost
Subtle variations in color look like brush strokes as the lightly frosted terrain reflects light. These variations provide a backdrop to some exotic features referred to colloquially as “spiders.” The radial channels branching out from a central depression are formed … Continue reading
Posted in Reports
Tagged CO2 frost, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, spiders, University of Arizona
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HiRISE: Frosty alcoves on Kaiser Crater dunes
Kaiser Crater hosts a large field of sand dunes. Every winter the dunes are covered with a layer of seasonal carbon dioxide ice (dry ice). In early spring the ice begins to sublimate (going directly from solid ice to gas). … Continue reading
Posted in Reports
Tagged CO2 frost, CO2 ice, dunes, frost, High Resolution Imaging Science Experiment, HiRISE, Kaiser Crater, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: Deceptively smooth
Deceptively smooth — North Polar layered deposits with generous amounts of carbon dioxide frost. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, CO2 frost, High Resolution Imaging Science Experiment, HiRISE, ice, Mars Reconnaissance Orbiter, MRO, NASA, north polar layered deposits, University of Arizona
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Frosty nights year-round may stir Mars dust
Some dusty parts of Mars get as cold at night year-round as the planet’s poles do in winter, even regions near the equator in summer, according to new NASA findings based on Mars Reconnaissance Orbiter observations. [The findings are reported … Continue reading