Nearly 80 years ago on Oct. 14, 1947, U.S. Air Force Capt. Chuck Yeager became the first person to break the sound barrier.

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, ...

Boom Supersonic is one step closer to launching the spiritual heir to the Concorde. The US firm's XB-1 prototype reached a transonic speed of Mach 0.95 during Test Flight 11 on January 10, 2025. The ...

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

During the second supersonic flight of the XB-1 technology demonstrator today, the jet exceeded Mach 1 three times without a boom being detected by microphones on the desert floor below. Rob writes ...

On its 12th test flight, the Boom XB-1 prototype broke the sound barrier three times and achieved a top speed of Mach 1.1. On its 12th test flight, the Boom XB-1 prototype broke the sound barrier ...

AUSTIN (KXAN) — Imagine flying from Austin to New York in a couple of hours, or even to Dallas in about thirty minutes. A new project launching later this year by NASA could make it possible. The ...

Among the flights he made after breaking the sound barrier was one on Dec. 12. 1953, when he flew an X-1A to a record of more than 1,600 mph (2,575 kph). He said he had gotten up at dawn that day and ...

(AP) Extreme athlete and record-setting high-altitude jumper Felix Baumgartner hopes no more last-minute cancellations will thwart his death-defying attempt to be the first skydiver in history to ...