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13 points

I didn’t realize the moon was ever anything but just a dead rock floating there

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18 points

The leading hypothesis is that the moon was formed when a massive asteroid smashed into the earth and blasted a huge chunk of the earth into space, and that became the moon. If true then the moon’s birth and younger existence was wildly cataclysmic

https://en.m.wikipedia.org/wiki/Origin_of_the_Moon

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5 points

a massive asteroid smashed into the earth

Asteroid, or proto-planet?

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10 points

Wiki refers to it as a “mars-sized body”

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