02 August 2022

Do You Get Often Post From Mars?


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.


Sent by Bryon (the UN).

2 comments:

  1. Not often. I wonder how many Postcrossers live on Mars?

    ReplyDelete
    Replies
    1. It is one of those "rare countries" on Postcrossing ;)

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