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Originally posted by MasterJedi
I think Mercury is the most telling planet... there is catastrophic destruction on one half and the other side is quite prestine.
I think I can think of 63 reasons why the whole Jupiter's gravity would prevent the formation of a planet in the location of the asteroid belt theory doesnt hold water.
Originally posted by whatukno
Hey thanks for the link, That explained a lot. However every year there is a great metior shower that rains small debris from this belt down on Earth.
I kinda like that rouge planet theory from 6000 years ago kinda creepy
Originally posted by cmdrkeenkid
Anyway, Nygdan and apc are on the right track here. Even over the billions of years, and accounting for what hit Sol, Luna, Earth, Mars, Jupiter, anything else, and the left overs, you still don't end up with enough material to make anything sizeable.