Aviation
A large, white airplane flies near mountains in Vail, Colorado

NASA tests airplanes as part of its aviation mission. Image Credit: NASA

      the design, building, testing and use of aircraft



Sentences:
NASA does a lot of research in the field of aviation and flight safety.

The Wright brothers made aviation history with the first flight of their airplane.



More Information:
http://spaceplace.nasa.gov/en/kids/helios_fact.shtml   →