The image of the stickney crater, the largest crater on the Martian moon Phobos,is named for mathematician Chole Angeline Stickney. Over 9 km across, it is nearly half the diameter of Phobos itself. via /r/spaceporn http://bit.ly/2T0TKbN
via Tumblr http://bit.ly/2T0UNsf
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