New Theory: Earth Once Had 2 Moons
The sky above Earth may once have been a little more crowded. The planet originally had two moons that collided into one, according to a new theory proposed in Nature . It’s widely believed that the early Earth collided with a Mars-sized proto-planet, and that debris coalesced into the moon. But…
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New Theory: Earth Once Had 2 Moons
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on August 3, 2011. Filed under News, World News.
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