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I'm not sure there is a catastrophe big enough to destroy all life (and all hope for future life) on Earth that would not also destroy Mars (think Sun exploding). Even a major asteroid strike wouldn't kill off everything on the planet, as per the dinosaur extinction theory.


Well it could end human life, and thus end the ability to move any other life off of the planet, right?

Or think about the LHC creating a black hole (not likely but when talking about the fate of life in the universe, worth considering.)

Or even runaway global warming turning Earth into Venus? (Not sure if it's possible, just ideas)




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