Psycho_bob0_o

Psycho_bob0_o t1_j20kn8z wrote

Reply to comment by Half-Borg in Planetary Colonization by lodoslomo

That would be one option (though very far off) but if you want O'Neill cylinders outside of the earth's orbit materials from the moon would be much cheaper. You could also use the moon as a waypoint for deep space missions.

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Psycho_bob0_o t1_j20fol4 wrote

It's worth noting such projects have existed(for example the biosphere).. however they tend to be run over short periods of time as the funds to permanently settle these places simply isn't there.

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