So liquids are recycled but solids are still bagged and stowed. I hear human excrement is high in methane content... and certain contemporary rockets use metha

So liquids are recycled but solids are still bagged and stowed. I hear human excrement is high in methane content... and certain contemporary rockets use methane fuel, right? Poop-powered spacecraft, for the win! Edit - I wrote this tongue in cheek but it turns out there really are scientists working on it: https://explore.research.ufl.edu/process-converts-human-waste-into-rocket-fuel.html https://explore.research.ufl.edu/process-converts-human-wast...