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ScienceCast: Did Earth Have Two Moons?
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Science
στις🗓 9/23/2011
Αναρτήθηκε από ✍
Lazaros
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Did our planet once have two moons? Some researchers say so. Moreover, the missing satellite might still be up there--splattered across the far side of the Moon. NASA's GRAIL mission could help confirm or refute the "two moon" hypothesis.
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