The Big O in Zero G

According to a new book, The Final Mission: Mir, The Human Adventure by French science writer Pierre Kohler, both NASA and the Russian space program have conducted experiments to discover the best sexual positions to use in a zero gravity environment. Kohler says the research is important in order to guarantee a healthy, happy sexual relationship between couples assigned to prolonged missions on the International Space Station and beyond. Apparently there's video footage of astronauts trying out a variety of positions, however it's all kept tightly under wraps. Of course, in this day of information overload, it's bound to end up on the Internet sooner or later. Interestingly, the old fashioned missionary position is impossible in space, and Kohler claims only four positions were discovered that didn't require "mechanical assistance". No word yet on whether any astronauts tried a weightless Cleveland steamer. More details here.