> The low gravity problem can be solved with rotation. If you rotate an asteroid very quickly, you will just fly off the surface. Rotation may be practical f

> The low gravity problem can be solved with rotation. If you rotate an asteroid very quickly, you will just fly off the surface. Rotation may be practical for spaceships but it would be enormously energy-expensive for any asteroid large enough for it to be worth it - can't make it too small or the difference in g-forces would be extremely uncomfortable or impractical for whatever industrial work you plan on doing - I assume mining the asteroids.