Life Support System
Steven Swanson completes a spacewalk outside the International Space Station while wearing a spacesuit

Spacesuits are an astronaut's life support system when they walk out in space. Image Credit: NASA

      equipment that creates a comfortable environment by controlling temperature and air pressure, and by providing oxygen



Sentences:
An astronaut wears a spacesuit that contains a life support system while working outside the space station.

Aircraft are designed with life support systems so that people are safe and comfortable.



More Information:
http://www.nasa.gov/vision/space/livinginspace/eclss_2007.html
http://science.nasa.gov/headlines/y2000/ast13nov_1.htm   →
http://science.nasa.gov/headlines/y2006/30oct_eclss.htm   →