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Originally Posted by Hemi-Cuda
from my understading, the moon was formed in the first place by a huge asteroid impacting earth and the resulting debris being blown into space. so maybe if something hit the moon we'd get a mini-moon? that'd be kinda neat
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Yeah, but it wouldn't be round though. IIRC the moon is solid, and when it was formed from Earth debris the Earth was a lot more molten than it is now; so as it cooled it formed into a sphere.
But you guys are right; the shockwave of such an impact would likely be enough to rip the atmosphere right off the Earth; so we'd only have a few seconds to enjoy it; depending on what killed us first- the asphyxiation or getting burned to a crisp by the solar radiation.