New Delhi, Jan. 30 -- American aerospace startup Boom Supersonic achieved a historic milestone by breaking the sound barrier with its XB-1 demonstrator jet. The monumental test flight was broadcast live from California's Mojave Air & Space Port, marking an extraordinary achievement in civil aviation.

The XB-1's flight stands out as it becomes the first ever US-made civil supersonic jet to shatter the sound barrier. Chief test pilot Tristan "Geppetto" Brandenburg piloted the XB-1 to an altitude of 35,290 feet and accelerated to Mach 1.122, approximately 750 mph, as stated in a press release from Boom.

The term "Mach" refers to the speed of an object relative to the speed of sound. Mach 1 denotes travelling at the speed of sound. In this ...