The smelly business of space agriculture
Since the early Space Age, researchers have studied what it would take for humans to survive long-term either in space or on another planet, and have even grown lettuce on the International Space Station and gotten a seed to sprout on the Moon. Experts — who often admit they look to science fiction for inspiration — say it will be crucial to save human excrement to use as fertilizer. “That’s your starter kit, what you need to get started in the soil,” says ecologist Wieger Wamelink. “Actually, The Martian is totally correct there. It may be smelly, but it’s so important.”
The Guardian | 8 min read
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