Tuesday’s XB-1 flight marks the first human-piloted civil supersonic flight since Concorde’s retirement more than 20 years ...

Boom Supersonic's XB-1 demonstrator craft could become the first commercial jet to break the sound barrier since Concorde ...

The countdown has begun for the XB-1’s “historic” first supersonic test flight that should break the sound barrier, according ...

The single-seat jet, a 201-foot-long test model by Boom Supersonic, hit 844 mph just 12 minutes into its latest test flight ...

Boom’s XB-1 jet breaks sound barrier on first supersonic flight - Boom’s inaugural XB-1 supersonic test flight reached speeds ...

Almost 22 years after Concorde made its final commercial flights, a prototype passenger jet is attempting to break the sound barrier – and its first supersonic test flight takes off today (28 January) ...

A sleek white aircraft has become the first independently developed jet to break the sound barrier. The XB-1 aircraft ...

Boom Supersonic plans to break the sound barrier during a test flight this ... first supersonic passenger jet since the British-French Concorde, which was retired in 2003. "It will still be ...

Almost 22 years after Concorde made its final commercial flights, a prototype passenger jet is attempting to break the sound barrier – and its first supersonic test flight takes off today (28 ...

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 ...