alt Hacker NewsBiosphere stuff is more fundamental than just mass. We had several closed ecosystem projects built on the ground out of concrete, with no mass limits, and all of them failed.
Biosphere stuff is more fundamental than just mass. We had several closed ecosystem projects built on the ground out of concrete, with no mass limits, and all of them failed.
A habitat on Mars would certainly not be closed ecosystem, especially not in the beginning. The biggest issue at biosphere IIRC was CO2 poisoning. You can crack the air in a mars habitat with power and in the worst case find Martian resources that will do some advantageous chemistries