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2017-06-27 11:00:56 -0500 jonyfries

Is the Moon "dry as a bone"?

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2016-08-24 00:28:56 -0500 DrPhiltill

What is a steam powered spacecraft?

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2016-05-10 19:13:47 -0500 Rob Mueller flag of United States of America

What is LCROSS?

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2016-05-07 11:15:44 -0500 Rob Mueller flag of United States of America

Is there water on Mars?

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