sound barrier

In just a short amount of time, daredevil and skydiver Felix Baumgartner will attempt to become the first man to skydive from the stratosphere at 120,000 feet and break the sound barrier. The mission is called Red Bull Stratos. If he succeeds, he will not only break the barrier of sound, but break Joe Kittinger's record for the world's highest skydive at 102,799 ft.