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

Twitpic will be shutting down October 25th.

Read our blog for more info at http://blog.twitpic.com/2014/09/twitpic-is-shutting-down/

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881 days ago

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PC0101 880 days ago

NASA says „Copper mines“. My details: the Pima Mine in Sahuarita, AZ, 32.000215,-110.999502, a few miles south of Tucson.