NASA's Vomit Comet Trains Astronauts in the Ways of Weightlessness

With limited lab space aboard the ISS and skyrocketing launch costs, only the very best extra-terrestrial experiments make it into orbit. To put prospective experiments and astronauts alike through their weightless paces over the last six decades, NASA has relied on a gracefully arcing series of cargo planes called… » 3/16/14 11:00am 3/16/14 11:00am