Clayton C. Anderson

@Astro_Clay

Crazy fun US (retired) Astronaut/consultant. Future author (Dec.), help w/STEM, S Media Q&A/space, love NASA, inventor of Twitpic POTD! http://t.co/0dv6eqVNaa

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How about this one?  Geography of the world not my strong suit, so encouraging help from the world of Twitter!

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1661 days ago

How about this one? Geography of the world not my strong suit, so encouraging help from the world of Twitter!

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PC0101 1013 days ago

Answering very old quiz questions: copper mine in Cananea, Mexico (as cataloged by NASA). ;-)