Crazy fun US (retired) Astronaut/consultant. Helping w/STEM, S Media Q&A/space, love NASA, inventor of Twitpic POTD! http://t.co/vrpaKgQLyW
577 days ago
Clay's "Pic of the Day!" A cool one for a very hot and muggy Houston Wednesday!
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Also in Kamchatka. Mountain ranges westward of Avachinsky volcano.
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