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    Colossus in the Playground
     
    hamishspence's Avatar

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    Feb 2007

    Default Re: Why (if anything) is a planet clearing its neighborhood important?

    Actually, that's not what the standard theory is. The standard theory is that something else, around the size of Mars (usually called Theia) collided with the Earth, and the splashed debris coalesced into the Moon.

    https://en.wikipedia.org/wiki/Theia_(planet)
    https://en.wikipedia.org/wiki/Origin_of_the_Moon
    Last edited by hamishspence; 2022-01-07 at 05:20 AM.
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