Barchan Sand Dunes
This 2016 Mars Reconnaissance Orbiter image provides a view of barchan sand dunes, which is the term for any crescent-shaped dune. The shape of the dunes pictures here suggest two intersecting wind currents blowing from different directions.
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Sent by Bryon (the UN).
Not often. I wonder how many Postcrossers live on Mars?
ReplyDeleteIt is one of those "rare countries" on Postcrossing ;)
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