Add Yahoo as a preferred source to see more of our stories on Google. Whether you use a hole in the ground or a fancy gold-plated toilet, on Earth, gravity pulls your waste down and away from you. For ...

In space nothing falls not even what you flush this is the story of how astronauts handle the most human task without gravity using technology built to keep them clean safe and sane millions of miles ...

Forget all the scientific advances, the most popular question asked of astronauts is much more primal: How do you use the restroom? Suction is needed to counteract the lack of gravity, and it's not ...