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What is the most widely accepted scientific theory for the Moon's formation?

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Correct answer: The giant-impact hypothesis

The prevailing scientific theory for the Moon's origin is the giant-impact hypothesis. This theory posits that the Moon formed from the debris ejected into orbit after a Mars-sized protoplanet, often named Theia, collided with the early Earth. This violent event accounts for the Moon's composition and the Earth-Moon system's angular momentum. Photo: NASA/JPL-Caltech, Wikimedia Commons, Public domain.

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Source: Wikipedia (CC BY-SA)

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