The worst thing in all of space travel may be pooping

Let’s start with the basics of the International Space Station’s toilet.

Said toilet was installed on the American side of the ISS in 2008. A curtain was added shortly afterward. Then it flooded.

Fortunately, there’s a second toilet on the Russian side, though it sometimes breaks, too, leaving the astronauts to go inside their shuttles or, as a last resort, to use what is euphemistically called an “Apollo bag.”