World News | November 22, 2011 | 0 comments

NASA Orbiter Catches Mars Sand Dunes in Motion

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aileenalmeda
Images from NASA's Mars Reconnaissance Orbiter show sand dunes and ripples moving across the surface of Mars at dozens of locations and shifting up to several yards. These observations reveal the planet's sandy surface is more dynamic than previously thought.

link:http://www.sciencedaily.com/releases/2011/11/111121135658.htm
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