More than 20 years after the death of Concorde, a new contender is set to attempt supersonic speeds in its first test flight ...

The ordeal left passengers breathless. A pilot on an Air France flight had to enact an emergency landing after a dangerous loss in pressure prompted the flight crew to deploy oxygen masks.

The XB-1 test plane, which is made by tech firm Boom, broke the speed of sound barrier at around 4.30pm GMT – as the American ...