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 Plasma Engine Prototype That Could Take Humans to Mars on a Single Tank The Oldest Light in the Universe 5 Baffling Mysteries About the Universe Building Blocks Of Life Spotted In Alien System Water Ice Discovered Beneath Mars Surface A First Look at the 3D-Printed Mars Habitats Astronauts Will be Living In