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Dramatic Dunes
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Dramatic Dunes

March 13, 2014
This image of a sand dune field in a Southern highlands crater was acquired when the Sun was just 5 degrees above the horizon. As a result, the image is mostly shadows, with sharply-delineated dune crests sticking up into the sunlight.

The especially bright patches—bluish in enhanced color—are due to seasonal frost that is accumulating as this hemisphere approaches winter.

Written by: Alfred McEwen

Credits: NASA/JPL/University of Arizona



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