NASA John H. Glenn Research Center at Lewis Field is a
NASA center, located within the cities of
Brook Park,
Cleveland, and
Fairview Park,
Ohio between
Cleveland Hopkins International Airport and the
Cleveland Metroparks's Rocky River Reservation, with a subsidiary facility in
Sandusky, Ohio. Its director is James M. Free. Glenn Research Center is one of ten major NASA field centers, whose primary mission is to develop science and technology for use in aeronautics and space. , it employed about 1,650 civil servants and 1,850 support contractors located on or near its site.