Will passengers ever break the sound barrier again? - Exclusive: Zoom may make life difficult for Boom, the most serious ...

Late last week, American company Boom Supersonic flew faster than the speed of sound with its XB-1 supersonic demonstrator ...

The sound barrier is something many people have heard of, but few understand, as it's somewhat of a misnomer. The speed of sound is known as Mach 1 (767 mph), and when an object moves beyond this ...