Fly like a super hero and flip like an Olympic gymnast aboard the ultimate luxury travel experience: Zero Gravity Corporation's (ZERO-G) G-FORCE ONE. April 3, fliers who pay the $4,950 (plus tax) fee will have the opportunity to defy the laws of gravity and float in weightlessness during ZERO-G’s weightless flight from Dulles International Airport (IAD) in Washington D.C.  These flights are the first and only FAA-approved provider of commercial weightless flights. Ozzy Osbourne has done...