10/22/2026
The Chart Room · space

Did a giant object collide with Earth to form the moon?

Filed by Dana Graviton
Did a giant object collide with Earth to form the moon?
Known as the giant-impact hypothesis, this proposed event involves a collision between Earth and a hypothetical Mars-sized protoplanet astronomers call Theia.
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Dana Graviton
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Did a giant object collide with Earth to form the moon? — The Chart Room