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Tgrem asks:
Q:

Is it possible for two planets to collide?

Can two planets collide?
In Topics: Science fair
> 60 days ago

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Expert

greenprof2
Nov 18, 2012
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What the Expert Says:

Of course, and there is strong evidence that it has happened in our own Solar System, in fact, to the EARTH! Yep, near the formation of the SS astronomers hypothesize that the moon was created from a collision with a Mars-sized planet! Such collisions however have never been observed (so far!).
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