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Nitpick: Can you actually hollow out an asteroid? It seems easier to use it to build an independently hollow structure. Asteroids probably resemble piles of gr

Nitpick: Can you actually hollow out an asteroid? It seems easier to use it to build an independently hollow structure. Asteroids probably resemble piles of gravel -- maybe with ice mixed in -- more than chunks of stone or metal. Update: Yes, this bugs me about The Expanse books. Spinning up Ceres to provide internal gravity ...

bane 9y ago
It likely depends on the asteroid. They have very different compositions and densities.
TeMPOraL 9y ago
> Spinning up Ceres to provide internal gravity ... Spinning a rock can be done over long periods of time. In The Expanse, it was a decades-long project, that earned the Tycho Corporation some serious engineering cred.
- lhopki01 9y ago
  Spinning up asteroids can't be done. The speed you'd need for significant gravity would rip the asteroid apart.
  - TeMPOraL 9y ago
    [citation needed]
imron 9y ago
> Nitpick: Can you actually hollow out an asteroid? You'd probably need expertise in boring to pull it off ;-)