Re:There’s No Planet B
by paulryanrogers on Monday January 16, 2023 @11:45AM
(#34402474)
Spinning enough to produce usable gravity is non-trivial and building something like that in space requires overcoming Earth's own gravity well.
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Non-trivial yes; although house-sized spinning fairground rides are a thing so it's clearly infinitely easier than the gravity of Mars being a law of physics.
And the only sane way to do this is ISRU, so we don't need to overcome Earth's gravity well for the structural mass.