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Comment: Re:Rotation (Score 4, Interesting) 79

by jfdavis668 (#47423737) Attached to: Study: Why the Moon's Far Side Looks So Different
At the time, the Moon did have an atmosphere. It was hot enough to vaporize silicon and aluminum, components of today's crust. What the paper is proposing is that the hot Earth keep the Moon hot enough to keep these elements vaporized on the Earth facing side, while the far side was cooler and the elements precipitated out. This would cause a migration of crustal components to the far side, thickening the crust. This way it was not as susceptible to puncture by falling objects.

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