Microbes May Help Astronauts Turn Human Waste Into Food

"It's faster than growing tomatoes or potatoes." - Christopher House, Penn State Professor of Geosciences

"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.'" - Christopher House, Penn State Professor of Geosciences

"We used materials from the commercial aquarium industry but adapted them for methane production." - Christopher House, Penn State Professor of Geosciences