Extravehicular Mobility Unit
An astronaut dressed in a large, bulky spacesuit waves to the camera while working in space

Astronaut Steven Swanson is shown in an EMU spacesuit while floating outside the International Space Station. Image Credit: NASA

      another name for an airtight spacesuit worn by astronauts while working outside of the spacecraft in space

The white suit that astronauts wear when they are working in space is called their Extravehicular Mobility Unit, or EMU.

The EMU protects astronauts from the harmful environment of space.

More Information:
http://spaceflight.nasa.gov/station/eva/spacesuit.html   →
http://quest.nasa.gov/space/teachers/suited/5emu1.html   →
http://quest.nasa.gov/space/teachers/suited/4space1.html   →
http://starchild.gsfc.nasa.gov/docs/StarChild/space_level2/spacewalk.html   →