Frosty Landscapes, Ancient Lakebed, Potential Landing Site

Richardson Crater Dunes, Partially Defrosted. Credit: NASA/JPL/University of Arizona

A new batch of images has been released by the HiRISE camera on the Mars Reconnaissaince Orbiter and -as usual — they are stunning. In the image above, there is a lot going on! Numerous dust devil tracks have left their criss-crossing marks on the dune field found in Richardson Crater. The dunes are covered by seasonal carbon dioxide frost, which has only partially defrosted, although the image was acquired late in Mars’ southern spring. There are channels carved into the ground and HiRISE scientists says the could have been created by blocks of carbon dioxide ice (dry ice) slide down the slope and sublimate (evaporate directly from solid to gas). Wouldn’t that be fun to be there and watch happen!

See more of the “coolest” and latest Mars images from HiRISE below:

(…) Read the rest of Latest From Mars: Frosty Landscapes, Ancient Lakebed, Potential Landing Site (545 words)

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(C) nancy for Universe Today, 2010. | Permalink | One comment | Add to Post

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