How Earth's previous moons collided to form the moon: New theory

Monday, January 9, 2017 - 13:31 in Astronomy & Space

A new theory suggests the Moon we see every night is not Earth's first moon, but rather the last in a series of moons that orbited our planet. Moons formed through the process could cross orbits, collide and merge, slowly building the bigger moon we see today.

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