
Dunes of sand-sized materials have been trapped on the floors of many Martian craters, as seen in this view captured by NASA Mars Reconnaissance Orbiter. This is one example, from a crater in Noachis Terra, west of the giant Hellas impact basin.
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NASA ID
PIA12491
Date Created
January 13, 2010
Center
JPL
Media Type
image
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Medium
960px