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Tag Archives: polar sand dunes
HiRISE image: shapes and spots on a polar sand dune
This image shows numerous dark shapes and bright spots on a sand dune in the Northern polar regions of Mars. The bright spots are carbon dioxide frost. On Mars, the main atmospheric component is carbon dioxide, which circulates seasonally between … Continue reading
Posted in Reports
Tagged CO2 ice, dunes, HiRISE, ice, Mars Reconnaissance Orbiter, north polar sand sea, polar sand dunes
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