Dozens of aircraft types have broken the sound barrier, far too many to list here. These include almost all fighter jets, many military trainers, various experimental aircraft, and various strategic ...

Editor's note: On Friday (June 12) the X-59 broke the sound barrier for a second time, achieving a top speed of Mach 1.4 (about 924 mile per hour), according to NASA. The achievement came just a week ...

Chuck Yeager, a World War II fighter ace who was the first human to travel faster than sound and whose gutsy test pilot exploits were immortalized in the bestselling book “The Right Stuff,” died ...