American company Boom Supersonic just broke the sound barrier with a civilian plane. What exactly is supersonic travel, and ...

This 34-minute flight, the culmination of 11 previous subsonic ones, took off from Mojave Air and Space Port in California.

When people say you can see a fighter jet before you hear it, they’re referring to supersonic flight: fighter jets can travel at around Mach 2. The sound from the fighter jet is trapped inside ...

Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for ...

It’s the first step in Boom’s ambitious goal to have supersonic airliners carry passengers by 2029. But what exactly is supersonic travel? There are good reasons why it’s not more common, despite the ...

Supersonic planes will burn significantly more fuel than current aircraft, resulting in higher emissions of carbon dioxide, ...

An aircraft developed by Boom Supersonic has become the first independently funded jet to break the sound barrier.

But what exactly is supersonic travel? There are good reasons why it’s not more common, despite the hype. The Mach number is defined as a plane’s speed divided by the speed that sound waves mo ...

Boom Supersonic flew its XB-1 test jet at about the speed of sound, a major step as the company works toward the daunting job ...

The XB-1 test flight was a unique event that will live on in the history books and has given travelers hope of a return to ...

High above a barren California desert on Tuesday, a privately developed aircraft broke the sound barrier for the first time ...

While based in Colorado and testing in California, the jet startup’s future is intertwined with North Carolina.