Wednesday, March 14, 2012

A history of violence: The Moon

A prelude to violence…

The Moon’s history of violence | Bad Astronomy | Discover Magazine:

According to current thinking, the Moon itself formed after a planet roughly the size of Mars slammed into the Earth at a glancing blow. This colossal impact threw billions of gigatons of debris into space. Some of that fell back onto Earth, and some formed a huge disk around the (now once again liquefied) planet. This material eventually coalesced to form the Moon.

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