Astronaut Suni Williams explains how astronauts use the bathroom in microgravity. The toilet works with airflow instead of gravity, so for number two there’s a very small opening that requires careful alignment, while number one uses a long suction tube. To avoid mix-ups, the systems are clearly color-coded. It’s a simple but critical piece of life aboard the space station, and this video shows exactly how astronauts manage everyday needs in orbit. #LifeInSpace #ISS #AstronautLife #SpaceToilet #