After ballooning 128,100 feet above sea level, Austrian Felix Baumgartner jumped into a four-minute ... he and the Red Bull Stratos team had hoped. 34 seconds in, Baumgartner broke the sound barrier ...

A daredevil stuntman broke the sound barrier when he jumped from the edge of space back down to Earth in 2012. In 2012, Australian skydiver Felix Baumgartner wanted to create a world record. He went ...

Red Bull's "Stratos" campaign was a record-breaking event. Austrian skydiver Felix Baumgartner performed a freefall jump from the edge of space, breaking the sound barrier. Red Bull encouraged users ...

First Independently Developed Jet Breaks the Sound Barrier Over the California Desert A sleek white aircraft became the first independently developed jet to break the sound barrier Tuesday ...

A sleek white aircraft became the first independently developed jet to break the sound barrier Tuesday, tearing through the air tens of thousands of feet above the Mojave Desert and a crowd of ...

A US company's prototype jet has broken the sound barrier in a demonstration it hopes will pave the way for a successor to the Concorde. Boom Supersonic's XB-1 is the first civilian aircraft to ...

An aircraft developed by Boom Supersonic became the first independently funded jet to break the sound barrier this week. The XB-1 aircraft accelerated to Mach 1.05 at about 35,000 feet during ...