I'm not really into flying on airplanes at all, but I would face my fears in a heartbeat if I could experience zero gravity weightlessness. Well, a new company is now offering up the coolest experience you will ever have that is literally like nothing on Earth called the ZERO-G Weightless Experience! Although you never actually reach outer-space, you do get to leave on a jet plane, er on G-FORCE ONE which is a specially modified Boeing 727-200. Once in the air, G-FORCE ONE will engage in 15 parabolic flight maneuvers. These weightless maneuvers let you experience 2 Lunar (1/6th gravity), 3 Martian (1/3rd gravity) and 10 total zero-gravity weightless sessions for 30 seconds each. (via The Green Head)