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 This Is How The Universe Began NASA’s Next Generation Space Suit This Nuclear Robot Could Tunnel for Alien Life on Europa Could the Goblin Planet Finally Unravel the Mystery of Planet X? How Close Are We to Building a Moon Base? How Close Are We to Photographing a Black Hole?