Re: Visiting asteroids
@SaneIT that is not part of the plan for the immediate future. It would be problematic for a few reasons. 1. they would have to first analyze what's out there are be sure it is safe and usabel.
2. mining space bodies in that way may be seen as a kind of cosmic vanadalism, depending on one's perspective.
I believe the supplies would all be coming from earth, though it would be simpler and easier for a space station to stock the materials and then make what it needs on demand without having to wait for a delivery from earth. Also for the plan of having some midway sites, again, just having to have materials available rather than finished products -- which entails predicting exactly what is needed in all cirumstances -- would make the supply chain more viable.