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by Oralia, Jose, Jennifer,
An astronaut suit has to have a pressurized atmosphere to prevent your bodily fluids from boiling.
Space suits cannot use normal air- 78 percent nitrogen, 21 percent oxygen. the low pressure would cause dangerously low oxygen. Most spacesuits provide a pure oxygen atmosphere for breathing.
An astronaut breathes out carbon dioxide. The concentration of carbon dioxide would build up to deadly levels.
The materials of a spacesuit are orth-fabric, aluminized Mylar, neoprene-coated fibers, Dacron, urethane-coated nylon, tricot, spandex, stainless steel, and high strength composite materials. All the materials have to be maneuverable and some for comfort.
NASA Official: Mark León
Last Updated: May 2005
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