Water is heavy in space. It costs thousands of dollars per pound to launch. So, astronauts don’t pack gallons of water.
They drink their own pee. Yes, really. International Space Station uses Reverse Osmosis to turn urine into drinking water. It’s cleaner than any tap on Earth.
What Is Reverse Osmosis And How Does It Work
So, next time you sip RO water, remember: you’re drinking technology that was designed to recycle astronaut sweat. Gross? Maybe. Cool? Absolutely.
