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 Google unveils 3 decades Timelapse of the Earth Mission to Mars + Reality TV Space in 2015 – 5 Things We May Soon Know About Asteroid Mining Mission Revealed by Planetary Resources, Inc. NASA – Measuring Mars’ Ancient Ocean Life on Enceladus