Baumgartner has previously completed two test jumps

Felix Baumgartner has been preparing for his attempt to break the sound barrier in freefall for the last five years.

Earlier this year, he successfully completed two test jumps from 71,600ft (21.8km) and 97,100ft (29.6km).

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Skydiver survives 24 mile jump

Austrian daredevil Felix Baumgartner lept into the stratosphere from a balloon flying 24 miles (38 km) above the planet in an attempt to break the sound barrier. He landed safely four and a half minutes later.