Sunday, November 20, 2011

Marching Martian sand dunes...

caught in motion (advancing up to two meters over several years) by the Mars Reconnaissance Orbiter spacecraft.  Click on the images at the link and you will see "blinked" comparisons of various dunes at two different points in time.  Very interesting.

Credit: NASA/JPL/UNIVERSITY OF ARIZONA/SCIENCE PHOTO LIBRARY.
Posted by J.P. Buchanan at 6:22 AM
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