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  Mars Reconnaissance Orbiter - Sand Dunes in the Spring
     
Mars Reconnaissance Orbiter - Sand Dunes in the Spring
Image credit: NASA/ JPL/University of Arizona

Uploader comment: In the winter, Martian dunes north of 70 degrees latitude are covered by a seasonal layer of carbon dioxide ice (dry ice). In the spring as the ice sublimates (goes directly from solid to gas) numerous seasonal phenomena are observed.

   

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Waspie_Dwarf
March 3, 2012, 5:55 pm
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