Earth once had two moons

In the scene that has fascinated poets, lovers and songwriters only if it has been around to see it, and the ground was once two satellites, astronomers now believe. But being called the smaller one hit the other in "a big alert."

The result: I left the planet with one moon and enlarged follow-up and always a little unbalanced. Astronomers came up with a scenario to explain why the moon is just so much more mountainous than the one that always faces Earth.
Theory, outlined Wednesday in the journal Nature, comes complete with a computer model showing how it could have happened and explain that the moon seems to get bigger pie in the face. He said experts from outside the logical idea, but not completely sold yet.

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