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'Big Splat' Collision May Have Created Moon

According to a a new study, co-authored by planetary scientist Erik Asphaug, our current moon may have been formed when a smaller moon that orbited Earth crashed into it (illustrated in the graphics). This explains why the two sides of the current moon are so different. More here.

'Big Splat' Collision May Have Created Moon 'Big Splat' Collision May Have Created Moon

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