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.

All of this happened supposed to be about 4.4 billion years ago, long before there was any life on earth to look up and see the strange sight of the double moons. Satellites themselves, they were young, and formed about 100 million years earlier when a giant planet Earth. They rose from the ground and every kind of spin in the sky together, and a smaller one trailing a few steps behind such little sister in tow.