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New Evidence Supports Theory That the Moon was Once Part of Earth_蜘蛛资讯网

lision, noble gases floated around Earth while superheated to thousands of degrees. The Moon formed at the same time and much of the noble gases settled in and on the Moon.,Had the gases come from els

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theory among scientists is that around 4.5 billion years ago when the Earth was still forming and was covered in molten lava, it was struck by an object thought to be roughly the size of Mars known as

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