How Fast Is Baumgartner Free Fall?

Felix Baumgartner became the first human to break the sound barrier in free fall in 2012 — leaping from a balloon 39 km up and reaching 1,357 km/h. He was in free fall for over 4 minutes before deploying his parachute.

Baumgartner's pressurised suit took 7 years to develop. Without it, his blood would have boiled at 39 km altitude where atmospheric pressure approaches zero.

• Above the speed of sound
• First human to break the sound barrier in free fall