As NASA prepares for an eventual return to the Moon, researchers are hard at work trying to solve a major problem for astronauts - using the toilet on the lunar surface.

During the Apollo missions of the 1960s, astronauts used vacuum seal bags which seems like an afterthought and led to some interesting transcripts.

Now NASA is looking for a toilet that will work not only in microgravity on the International Space Station but also on the moon itself and is offering US$35,000 in prizes to design the toilet through its Lunar Loo Challenge. Mike Drolet has the story.

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