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 ...

Astronaut Tim Peake showed the world how to keep clean in outer space in a cool instructional video. Uploaded to YouTube on Jan. 26, Peake shows the process of how astronauts aboard the International ...

How do astronauts go to the bathroom in space? It's a question you've probably wondered about! In microgravity, traditional toilets don’t work, so NASA had to reinvent the toilet creating some of the ...