42 is the answer. But what is the question? https://t.co/g3MCnUnLvL pic.twitter.com/orHgYgFJmA
— ESA (@esa) March 15, 2017
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Michigan Astronomy Observing
42 is the answer. But what is the question? https://t.co/g3MCnUnLvL pic.twitter.com/orHgYgFJmA
— ESA (@esa) March 15, 2017