It contains a battery for electrical power. Its tanks supply oxygen for the astronauts to breathe. It provides astronauts many of the things they need to survive on a spacewalk. Learn about the parts and why each piece is important. NASA spacesuits have many pieces and parts. Without spacewalks, much of the work that needs to be done in space would not be accomplished.Īnd a spacewalk would be impossible without the protection of a spacesuit. The pieces of the suit interlock so that none of the spacewalker's skin is exposed to space. The spacesuit completely covers a spacewalker's body. Like a spacecraft, a spacesuit protects an astronaut from the dangers of space. Some spacewalks may last as long as eight hours. When the Hubble Space Telescope needs repairs, spacewalkers are needed to do the job. Spacewalks have been used to assist in capturing satellites in space. Sometimes the purpose of a spacewalk is to fix something that is broken. Mobility means that the astronaut can move while wearing the suit.Īstronauts sometimes go on spacewalks to help build the space station. Extravehicular means outside of the vehicle or spacecraft. The white spacesuit an astronaut wears during a spacewalk is called the extravehicular mobility unit, or EMU. Working outside of a spacecraft while in space is called an extravehicular activity, an EVA or a spacewalk. Like a small spacecraft, the spacesuit allows astronauts to work outside of their space vehicles. The spacesuit provides protection and a means for survival for the astronaut. The spacesuit used on space shuttle and International Space Station missions is like a personal spacecraft. Learn more about why astronauts wear spacesuits. NASA's Extravehicular Mobility Unit, or EMU, is like a personal mini-spacecraft.
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