Mars is a dry, dusty planet that looks like a lifeless ball of rock in just about every image we see. Thick cloud cover isn’t something we’re used to seeing on the Red Planet but new imagery from the European Space Agency shows a miles-long cloud sitting in place above a geographical feature that has been dead for millions of years.
The cloud was spotted hovering over the Arsia Mons volcano. Oftentimes if you see thick plumes over a volcano it’s a sign of volcanic activity, if not an imminent eruption, but Arsia Mons has been extinct and silent for tens of millions of years. So, what’s the deal? ESA thinks it has the answer.
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Astronomers spot a thick cloud hovering above extinct Martian volcano originally appeared on BGR.com on Wed, 21 Nov 2018 at 13:47:58 EDT. Please see our terms for use of feeds.
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