Representatives of the companies were aboard the aircraft to operate and evaluate their technologies during the flights, which created zero-gravity and lunar-gravity conditions. Weightless conditions are achieved by flying an airplane on a parabolic trajectory. A typical flight lasting two hours consists of 50 parabolas, generating up to 25 seconds of microgravity during each parabola. The technologies will improve air and space vehicle capabilities and support the design of systems for the exploration of the moon and operations there. NASA’s contract with the Zero Gravity Corporation of Las Vegas, which is managed by NASA’s Glenn Research Center in Cleveland, is part of an effort to expand the agency’s use of commercial services. A call for new proposals for FAST program flights in 2009 will be issued later this month and will be open to any companies or organizations working on technologies of value to NASA.


