Austrian extreme skydiver Felix Baumgartner has become the only human being to break the sound barrier after skydiving from the edge of space, 38 km above Earth. After a 4:19 minute dive, Baumgartner landed safely in New Mexico slightly at 2:20 p.m. ET Sunday. The first images of the video are very impressive, when Baumgartner opens the capsule door.
During its dive, through the stratosphere Baumgartner reached a speed of 1172 km/h. He broke 3 world records within one dive: the highest altitude balloon flight, the highest skydive and the first human to break the sound barrier. He could not break the fourth record: the longest free fall which is still in the possession of his mentor Joe Kittinger (4:36 minutes).
you wrote 1172 km/h = NOT THE SPEED OF SOUND!
and he reached 1,342.8 km/h
Sorry for this mistake and thank you for your correction.
MP