where do astronauts poop

Astronauts poop in specially designed space toilets that use suction instead of gravity. On the International Space Station, the toilet has a small seat for solid waste and a funnel or hose for urine, and the waste is collected in sealed containers or recycled systems.

Quick Scoop

In space, there is no normal “down,” so a regular toilet would not work well. Astronauts use a vacuum-style system that holds them in place and pulls waste away with airflow.

How it works

• Poop: Astronauts sit on a small seat, and suction carries the waste into a container.

• Pee: They use a funnel or hose attachment, which also uses suction.

• Training: Astronauts practice on Earth so they can aim correctly in microgravity.

• Afterward: Waste is stored, and much of it is sent away in cargo vehicles that later burn up in the atmosphere.

Why it matters

Bathroom systems in space are not just about comfort. They prevent waste from floating around the cabin, which could create hygiene and safety problems.

If you want, I can also explain how astronauts go to the bathroom during spacewalks.