*waste all that energy to move trillions of tons soil into space.* Nobody plans ... | Hacker News

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bdunbar on Sept 30, 2012 | parent | context | favorite | on: Space colony art from the 1970s

waste all that energy to move trillions of tons soil into space.

Nobody plans on doing that. There are already trillions of tons of material _in_ space - it merely needs to be moved to where you want the habitat to be.

pan69 on Sept 30, 2012 [–]

Indeed:

http://en.wikipedia.org/wiki/Asteroid_mining

dredmorbius on Oct 1, 2012 | [–]

Actually, lunar mining was the O'Neill model as I understand: https://en.wikipedia.org/wiki/Moon_mining

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