When you go to the bathroom on earth,
you're relying on gravity...pretty, pretty heavily
Imagine if you're half way done and somebody shut off gravity
It'd be a mess and you'd float of the toilet
So, when we designed our space toilet
first to a seat belt on it, to hold you down
and then, we decided to separate solids and liquids because it is easier to store that way
So, we just have tube that you pee into, and have air pulled to the tube
so it's not a big deal
For the women, there's a cup that fits-up against them,
For the guy , it's just a little tunnel, you just pee into the stupid
it goes into a sewage tank
But the solids that come out of your body ,
that's a harder problem to solve
And it's an important medical one,
because on Earth everything falls on the floor
But in space it's gonna float around
So it'll really make you sick
If you re-ingest something that came out of your body
it will really make you sick
And we can't afford to get that sick
So we designed a toilet that,
instead of gravity pulling everything into the toilet,
it has air flow
There's air pulled down into the toilet
-- Sort of windy when you're sitting there
But it pulls everything out of your body
Everything that comes out of your body
gets pulled down into the toilet by the air
and then in the storage tank we just expose that to the vaccum of space ,
so it basically just freeze-dries everything
So it killes all the bacteria
so there's no smell
And then we store it
And then when we have a whole bunch if stored
we put in a little unmanned supply ship
and then we undock it and then it burns up in the atmosphere
So the next time you see a beautiful shooting star going across the sky
that's what it might be