Civilian passengers in an Airbus A330 Zero-G jet enjoy moments of weightlessness on March 15, 2013 during the first zero-gravity airplane flight for paying passengers in France. All of the available slots for 2013 and 2014 were sold out, at a cost of 6,000 euros per person. The airplane ride simulates the microgravity of orbital space missions by going through parabolic flight maneuvers that counter the force of gravity. (Photo by Mehdi Fedouach/AFP Photo)
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