On Tuesday October 9th Austrian skydiver Felix Baumgartner will ascend more than 120,000 feet into the atmosphere inside a capsule attached to a helium balloon. Then, with nothing but a pressurized suit and a parachute, Baumgartner will jump out of the capsule and plummet toward Earth, breaking the sound barrier on the way down. What could go wrong? Quite a few things, it turns out.















