Not quite. The Mars Reconaissance Orbiter snapped this flick a couple of years ago (waaaaay back in April 2008) of dark sand leaving mean streaks on the surface of Martian sand dunes. (Too bad, I was secretly hoping the photo proved the Ents had moved to Mars from Middle Earth...)
A better explanation can be found here.
Posted by eyer at 10:28:44. Filed under: science + progress
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