Editor’s note: These three kids seemed to be having quite a time as their father flew them in his private plane on a few weightless parabolics. The exposure to weightlessness was brief – but just long enough to have the desired effect. By the third parabolic the little boy was ready to try gymnastics (ouch).

Biologist, Explorers Club Fellow, ex-NASA Space Biologist and Payload integrator, Editor of NASAWatch.com and Astrobiology.com, Lapsed climber, Explorer, Synaesthete, Former Challenger Center board member...