Saturday, April 14, 2012

What’s the Moon Made Of? Earth, Most Likely.

What’s the Moon Made Of? Earth, Most Likely.:

An impact between a Mars-sized protoplanet and early Earth is the most widely-accepted origin of the Moon. (NASA/JPL-Caltech)
Recent research on lunar samples has shown that the Moon may be made of more Earth than green cheese — if by “green cheese” you mean the protoplanet impactor that was instrumental in its creation.


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