Top best answers to the question «How do female astronauts pee in space»
To use it, astronauts sit around the hole just as we would on Earth, poop, wipe themselves and then put the wipe inside the hole. The same suction system that uses airflow to keep urine from flying out of the funnel also works to keep all of the "deposits" inside the toilet.
With the older latrine models on the ISS, astronauts urinate into a handheld funnel and defecate into a device that looks like a smaller version of a traditional toilet seat. A fan inside each apparatus suctions the waste away from the body, an important function in an environment where everything floats.
To pee, they can sit or stand and then hold the funnel and hose tightly against their skin so that nothing leaks out. To poop, astronauts lift the toilet lid and sit on the seat – just like here on Earth.