Tag Archives: northern plains

HiRISE: Lonely mound

Posted on April 21, 2014 by rburnham

Beautiful Mars series. Lonely mound on the northern lowlands. More Beautiful Mars images.

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HiRISE image: Defrosting dunes

Posted on February 21, 2014 by rburnham

Beautiful Mars series: Serious dune defrosting. The dark material is most likely the result of sublimation, where a solid goes directly into a gas, exposing the subsurface material on the lighter top. The ice is carbon dioxide ice, so it … Continue reading →

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HiRISE image: High-latitude crater

Posted on February 18, 2014 by rburnham

Beautiful Mars series: High-latitude (72° N) crater, with frost vanishing from its interior walls as spring advances. More Beautiful Mars images.

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Loess in the lowlands

Posted on December 11, 2012 by rburnham

A team of geologists led by James A. Skinner, Jr. (U.S. Geological Survey) has discovered and mapped a previously unidentified unit in the Martian northern lowlands. The unit appears to give evidence of a major climate shift long ago in … Continue reading →

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