Part science experiment, part publicity stunt, part life-long ambition, the Red Bull Stratos mission features skydiver Felix Baumgartner attempting to break the speed of sound with his body in a record-setting freefall from the stratosphere. Watch live in the feed above. A high-tech capsule that will bring Baumgartner to 36,500 meters (120,000 feet) above Earth, via a stratospheric balloon.
Update: Success! Baumgarter did it, breaking several freefall records! Read our full story, with a full gallery of images from the jump.