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A comment on There’s No Planet B. Parent comment
https://en.wikipedia.org/wiki/Project_Orion_(nuclear_propuls...
Nuclear bombs make for pretty good propulsion systems and can propel incredible mass at a decent speed. In a "the planet needs evacuation" type of scenario you don't worry about the fallout either.
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https://en.wikipedia.org/wiki/Project_Orion_(nuclear_propuls...
Nuclear bombs make for pretty good propulsion systems and can propel incredible mass at a decent speed. In a "the planet needs evacuation" type of scenario you don't worry about the fallout either.