Quote:
Originally Posted by Darqref
I bounced off this one, due to the impression that any race that has ANY form of interstellar travel will by definition be able to move an asteroid or comet, or at least keep it from impacting a planet, if there is enough time to run a competition. did not finish.
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Forgot to mention this when you posted but DART:
https://www.nasa.gov/planetarydefense/dart/
Don't even need much by way of "interplanetary travel" to deflect an asteroid or comet sufficiently to avoid a plantary collision given suffient advance warning. Assuming it works, and there is little reason to believe it won't.