What scientific theory explains the Moon's formation involving a collision with a Mars-sized body?

Answer

Giant Impact Hypothesis

The prevailing explanation is the Giant Impact Hypothesis, which suggests a Mars-sized protoplanet named Theia collided violently with the proto-Earth, with the resulting debris coalescing to form the Moon.

What scientific theory explains the Moon's formation involving a collision with a Mars-sized body?

#Videos

The Moon - Its Characteristics and Impacts on Earth - YouTube

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