moving_martian_sand_dunes_3-3-2007_to_12-1-2010

A rippled dune front in Herschel Crater on Mars moved an average of about one meter (about one yard) between March 3, 2007 and December 1, 2010, as seen in these images from NASA’s Mars Reconnaissance Orbiter. Image credit: NASA/JPL-Caltech/Univ. of Ariz./JHUAPL

Posted 
November 18, 2011
 in 

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