But according to some astronauts, they said that there is this sort of pipe vacuum that sucks up their urine away from their suit.
So whenever you feel pressed, all you gonna do is plug-in the pipe and whoala. when it also comes time for poopoo, the astronauts have to strap themselves in and aim there butt hole into another hole and then let the toilet suck away their shitty excrement. (That just life made easy)
This might disgust you but do you know that every once in a while the systems malfunctions and all the things you dropped in the toilet floats out. eeeeeewwww
But as time went on some major improvements have been done about the space toilet, like now astronauts have to wear this super absorbent diapers called Maximum Absorbent Garments, so it will be easy to go about their shitty business.