NASA - National Aeronautics and Space Administration

The orbiter is about to touch down at NASA's Kennedy Space Center in Florida. Image Credit: NASA

      the part of the space shuttle that looks like an airplane, flies into space and back down again, carrying people and equipment

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Sentences:
Astronauts live and work in the orbiter during space shuttle missions.

The orbiter landed safely after a trip to the space station.

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More Information:
http://science.ksc.nasa.gov/shuttle/resources/orbiters/orbiters.html   →
http://www.nasa.gov/returntoflight/system/system_Orbiter.html
http://www.nasa.gov/centers/kennedy/shuttleoperations/orbiters/orbiters_toc.html