Thought provoking RT @mashable: Finding other habitable planets could be bad news for humanity http://on.mash.to/1iMuHTa via @conversationuk
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Uuh, thinking...“
@mashable: Other habitable planets could be bad news for#humanity http://on.mash.to/1iMuHTa via@conversationuk”#spaceThanks. Twitter will use this to make your timeline better. UndoUndo
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