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A big chunk of a planet hitting another planet would melt and sterilize both of them during the collision.
by ajuc 6y ago
A big chunk of a planet hitting another planet would melt and sterilize both of them during the collision.
- Cro_on 6y agoA BIG CHUNK turns into a range of manageable pieces over a star system. The bigger the chunk, the higher the probability of a piece existing that is both large enough needed to harbour microbial life and not so big as to melt and sterilise other planets.