Tim Peake has already conducted a historic space walk, so it’s no surprise he’s onto his next endeavor: explaining how astronauts use the bathroom in zero gravity. On Wednesday, the British space traveller shared a video on Facebook of himself answering what Peake calls the most popular question about his journey. “Take the cap off, turn on the fan and the air flow keeps everything going down the pipe,” he says, holding up a tube connected to a special space toilet. “Simple as that.”
Peake is living on the International Space Station as part of a six-month mission for the European Space Agency.
Read More: Astronaut Tweets David Bowie Tribute From Space
Watch the full video above.
More Must-Reads From TIME
- The Biggest Moments From the Second Republican Debate
- Rooftop Solar Power Has a Dark Side
- Death and Desperation Take Over the World's Largest Refugee Camp
- Right-Wing's New Aim: a Parallel Economy
- Is It Flu, COVID-19, or RSV? Navigating At-Home Tests
- Kerry Washington: The Story of My Abortion
- How Canada and India's Relationship Crumbled
- Want Weekly Recs on What to Watch, Read, and More? Sign Up for Worth Your Time
