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gordo65 t1_j8uogoi wrote

Grab an asteroid and put it into orbit? Drill to the center of a planet? Seems like the cost and effort of terraforming Mars would exceed the benefit.

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Pornelius_McSucc OP t1_j8uvsxf wrote

i don't think so. after the fact, you have an entirely separate sustaining inhabitable planet. good until the death of the solar system.

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