Notice the dust devil. Ethan Siegel just shared this in his article about sand dunes on Mars. He didn't really say anything about it, but I think it's kind of haunting.
Originally posted on Google+ · May 9, 2016
Photo by Opportunity on Mars
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did you see the video of water boiling off in the low-pressure atmosphere tank (the one that mimics conditions on Mars).. Definitively no Earth.