“Water Etchings in Western Mexico Sands” was uploaded to Flickr

Expedition 47 Flight Engineer Tim Kopra of NASA posted this May 15, 2016 photograph to social media, writing, "Water etchings in western @Mexico sands. @Space_Station #Explore" via NASA ift.tt/1rTZdCW
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Water Etchings in Western Mexico Sands was taken on May 18, 2016 at 05:11AM