Seven down. Three to go. Boom Supersonic—the developer of a 64-to-80-passenger commercial airliner that flies faster than the speed of sound—last week set speed and altitude records with its XB-1 test ...

NASA’s X-59 supersonic jet completed its first test flight on Tuesday, flying at subsonic speeds of 230 mph over the desert ...

The Air Force successfully fired an air-to-ground hypersonic missile that reached speeds more than five times the speed of sound in a test off the southern California coast, officials said Monday. The ...

The world’s fastest business jet, which travels at just below the speed of sound, has been officially cleared for takeoff at ...

NASA’s sleek and quiet supersonic jet — which is built to reach speeds of up to 925 mph without producing a loud sonic boom— ...

Boom Supersonic has set a new speed record for its XB-1 prototype aircraft while confirming the stability of its design at high speeds for subsonic flight. The successful test puts us one step closer ...

A supersonic jet plane designed to make very little noise took flight for the first time this week, cruising over the ...

A supersonic jet built by Boom Technology broke the sound barrier for the first time on Tuesday, advancing its bid to resurrect high-speed passenger flights two decades after the Concorde’s demise.

You might already know that in 1947, U.S. test pilot Chuck Yeager was the first person to break the sound barrier in a Bell X-1 named the Glamorous Glennis. But aircraft aren't the only things that ...