The capsule of the Red Bull Stratos Project is seen in the pressure chamber at Brooks Air Force Base in San Antonio, Texas, on September 24.
On October 8 adventurer Felix Baumgartner is set to ascend from Roswell, New Mexico, to an estimated 120,000 feet (36,580 meters) in this capsule, using a stratospheric balloon.
He'll then simply open the door, step out, and free-fall, likely falling faster than the speed of sound before opening a parachute and gliding to the ground.
In addition to breaking the record for the highest sky dive, a Baumgartner and team hope the attempt will provide scientific data on the limits of both the human body and extreme equipment that could prove useful for future space exploration.
(See "'Jet Man' to Set Flight Record Over English Channel .")