In the ultimate of parachute jumps, Felix Baumgartner plans to start his from the edge of space.<br /><br />Already the record holder of the lowest base jump ever recorded and for crossing the English Channel in freefall, with his latest stunt, Baumgartner is looking to break four records - the longest, highest and fastest freefalls as well as the highest balloon flight.<br /><br />But such daring comes with great risks - any breach in his pressurised suit would make his tissues swell and his blood boil.<br /><br />Al Jazeera's Sonia Gallego reports.