Technology

Nasa launches Lunar Loo challenge

Nasa launches Lunar Loo challenge

Including astronauts, who have since the early space era found ways to do their business in near-zero gravity -- from the Apollo missions when waste management was, in Nasa's words, "a plastic bag which was taped to the buttocks to capture feces," to the more advanced toilets of the International Space Station that use fan-driven suction systems.

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