[Raptor235]

Most of us, at some point in our lives, have wondered what it’s like to be an astronaut. Here is a talk that Chris Hadfield, a Canadian astronaut, gave at the Ontario Science Centre about one aspect of living in outer space: what to do when nature calls?

Toilets as we know them on Earth just don’t work without gravity. So, in space, they substitute rushing air, which creates a vacuum (as well as a breeze). This vacuum ensures that there’s nothing floating around in the spacecraft’s recycled air that is going to make the astronauts sick— that’s something that we can’t afford on any space mission, especially a long one.
You can find the entire article here http://aboutmyplanet.com/videos/toilets-space

[atula]

Very very interesting....Imagine frozen waste...Just wanted to know, isnt the similar kind of thing done in aircrafts too...

[tater03]

That was interesting. I never thought about what an astronaught does when they have to go to the bathroom let alone what happens to the waste.