Joey Thunder

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Aug 6
Earth may have had 2 moons

A tiny second moon may once have orbited Earth before catastrophically   slamming into the other one, a titanic clash that could explain why the   two sides of the surviving lunar satellite are so different from each   other

Earth may have had 2 moons

A tiny second moon may once have orbited Earth before catastrophically slamming into the other one, a titanic clash that could explain why the two sides of the surviving lunar satellite are so different from each other

(Source: mothernaturenetwork)