How Do Spacesuits Work? A spacesuit is designed to keep astronauts safe in the vacuum of space, and its main secret is low pressure. Facebook Prev Article Next Article Space Checkout these cool gadgets... Related Posts Does Planet X Exist? This Is How Astronauts Wash Their Hands In Space How Do We Find Dark Matter? Space Fence – Tracking Space Debris Live ISS Astronauts Just Ate the First Lettuce Grown in Space! Water on Ganymede, and NASA Needs Your Help