Scientists discovered microbes can transform human waste back into food for astronauts. A research team from Penn State University showed it's possible for astronauts to turn their poop into space food using a series of microbial reactors capable of quickly breaking down both liquid and solid waste.
Researchers tested this using artificial feces, resulting in a 52% protein and 36% fat biomass. Christopher House, the Penn State professor leading the team, noted: "It's a little strange, but the concept would be a little bit like Marmite or Vegemite where you're eating a smear of 'microbial goo."
This food for astronauts is what future space colonizers could conceivably be eating, especially as academics continue to explore the idea of living on Mars.
Waste-Transformed Space Food
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