Comment on A City on Mars: Reality kills space settlement dreams
scarabic@lemmy.world 10 months agoThey would ship in a new scrubbed but could they? We have to assume that a colony might need to self subsist for long periods, at least as long as Biosphere 2 was running, because of the practical considerations in shipping replacement parts to Mars.
guitarsarereal@sh.itjust.works 10 months ago
Bringing tons of spare parts can extend the length of time between required visits, also, again, I’m considering that the only way the cost of these colonies can possibly ever be justified is as part of setting up a space-based economy/space-based supply chain. That means regular round trip visits to bring at least some of those resources back to Earth where the value can be realized. Breakdowns occur, shit happens, a ship might crash/have a catastrophic systems failure/etc on the way, creating periods where they can’t get fresh supplies and they have to get creative. I get it.
My main point though is that the Biosphere experiments were held to an extremely high standard of isolation because the point was to explore what would happen in a completely enclosed system. That’s useful for exploring how far you can take closed systems, but at the end of the day, again, no real space based activity would or could be held to the same standard of isolation. They were called frauds because someone brought some plastic bags into the enclosure (sure, it contaminates the experiment, also, space colonies won’t exactly be experiments in the same way Biosphere 2 was)