There are a lot of reasons not to go to space, but here's a new and horrifying one: Pee in the spaceship walls.

Two SpaceX capsules have now exhibited plumbing problems, with the latest issue seeing Endeavour's busted toilet leak urine into the walls like a gross horror film. Unfortunately there are no plumbers in space, meaning the astronauts either have hold their bladders until they damage something or just relieve themselves in giant space diapers — thoughtfully rebranded by NASA as "undergarments."

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"Be careful which undergarments you choose, 'cause it is very hard to poop in a bra," joked Late Showhost Stephen Colbert. "You do get two shots — and then you can fire it out the window."

Incidentally, he also noted, astronauts aboard the International Space Station have used the first chillis grown in space to make tacos.

"They better hurry up and fix that space toilet," quipped Colbert.

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