Casual Friday — sand seas of the Solar System

Today’s video is a bit of a long one (50 minutes), but worth the time when you can get to it. There are four worlds in our solar system that have both substantial atmospheres and solid surfaces — and each has sand seas covering some portion of its surface as a result. In this video, Lori Fenton, Research Scientist at the Carl Sagan Center, explains sand seas and what we can learn from them (direct link):

H/T: Spaceports

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