Science & Tech

What Is the Sabatier Reaction? Learn How Astronauts Create Water and Oxygen in Space

Written by MasterClass

Last updated: Sep 29, 2021 • 3 min read

Access to a drinkable, clean water supply is perhaps the most essential resource for human survival during space missions. Since room is limited on space shuttles, the International Space Station (ISS) and other spacecraft, it’s important to have a life support system that can maximize water production without taking up too much space. That’s why NASA and other space agencies use something called the Sabatier reaction, which was developed by the French chemist Paul Sabatier.