Ever find yourself wondering what it would take to build a self sustainable ecosystem on Mars? (I can’t be the only one). It turns out Elon Musk’s not the only one thinking about this either. Both NASA and the European Space Agency have been working on various projects for decades, but sounds like they’re getting a lot closer. Sounds good to me, as long as I don’t have to eat Soylent Green when I get to Mars.

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