Thursday, October 18, 2012

Forming Earth's Moon

The generally accepted theory of how Earth's Moon formed holds that something big crashed into the young Earth, and debris from that collision coalesced to form the Moon.  Three new studies support that general idea.

One study posits a smaller impactor than Mars, one assumes a Mars-sized body, and one looks at the role of water in the process, but they all reinforce the basic collision theory.

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