Earth was hit by another planet the size of mars. they say we got the moon out of the deal and a new Earth.
the original Earth Earth mark 1 was wiped out along with any trace of life it may have had.
after the collision earth mark 2 formed along with our moon and the rest they say is history.
Will it happen again? Absolutely.
When? thats any ones guess.
Gatekeeper777 Reviewed by Gatekeeper777 on . theoretically (galaxies colliding) what would happen if two galaxies collided.... if space is infinite (which and alot of others believe) then technically, the galaxies may not be stationary and moving themselves... so what would (could, or what do you think) happen if two of them collided? Rating: 5