https://arstechnica.com/science/2023/09/what-would-it-take-to-build-a-self-sustaining-astronaut-ecosystem-on-mars/
This is an interesting article in that it proposes a simple, nimble system for generating oxygen, food, and processing waste products.
BioShere 1 and 2 both had complicates systems that were too large to managae and that we did not understand how they worked. More part, more points of failure.
|