NASA hires Zero G

In January of 2008, NASA contracted with Zero G to manage and operate an aircraft to perform parabolic flights for NASA experiments and personnel. It is the first time a commercial operator has been contracted to provide weightless flight services for NASA, which has previously used government aircraft and personnel. Zero G's flights for NASA initiate primarily from NASA's Johnson Space Center in Houston and NASA's Glenn Research Center in Cleveland.

NASA most recently operated its own C-9 aircraft, a military version of the McDonnell Douglas DC-9, to conduct its reduced-gravity flight program. Compared to NASA's C-9, G-Force One is significantly larger, carrying 50% more passengers, and is 75% larger in volume.