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 What would it take to build a self-sustaining astronaut ecosystem on Mars?

We're getting closer to bioregenerative life support systems for astronauts.

https://arstechnica.com/science/2023/09/what-would-it-take-to-build-a-self-sustaining-astronaut-ecosystem-on-mars/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social

https://files.mastodon.social/media_attachments/files/111/057/503/190/239/239/original/7ff8a7542cd22188.jpg