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Questions about the extraction of materials from other planets or asteroids.

12 votes
3 answers
471 views

What is the range of strength for asteroidal materials?

Observed rotation rates of small asteroids point to a limit on the material strength of these bodies. This limit is not very high But that's only part of the picture, because an upper limit on rotat …
AlanSE's user avatar
  • 16.4k
5 votes

Would a 'space elevator'/sling on a rotating asteroid work?

There is a big problem with the proposal as-stated in the OP, and I don't believe anyone else has sufficiently hit this point. I'm quoting, with emphasis my own here: If this scheme worked, then p …
AlanSE's user avatar
  • 16.4k
10 votes

Can one put a large nickel-iron asteroid into an elliptical solar orbit that results in a so...

If gravity was repulsive between the Earth and the asteroid, this could at least make sense in principle. In that case, getting close is like pushing on a spring, and with a carefully managed traject …
AlanSE's user avatar
  • 16.4k
13 votes
Accepted

What about gathering water ice from Saturn's rings?

Commentary: It's true that mining the lunar ice would involve challenges that Saturn's rings don't have. …
AlanSE's user avatar
  • 16.4k