On a cool October morning in 2025, a sleek jet streaked across the sky above California’s Mojave Desert. This was NASA and ...

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 ...

When an object in space appears to be racing at nineteen times the speed of sound, it instantly jumps from routine data point ...

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 ...

On their fourth attempt, the U.S. Air Force and Lockheed Martin launched a hypersonic missile, the AGM-183A Air-launched Rapid Response Weapon (ARRW). The Air Force completed the launch on May 14th, ...

When we talk about the speed of sound, we usually mean how fast it moves through air. But it can travel much faster through other media, and now scientists at the University of Cambridge and Queen ...

Scientists have discovered the fastest possible speed of sound, a zippy 22 miles (36 kilometers) per second. This exercise was largely theoretical: The researchers found that the answer, which is ...

MOSCOW — Russia’s new strategic weapon has rendered any missile defenses useless at a small fraction of their cost, officials said Thursday. The Avangard hypersonic glide vehicle flies 27 times faster ...

With speeds seven times the speed of sound, temperatures hotter than the sun and chemical reactions that rip apart air molecules, hypersonic flight sounds terrifying. But a professor and some students ...

Chuck Yeager, a former U.S. Air Force officer who became the first pilot to break the speed of sound, died Monday. He was 97. NASA Administrator Jim Bridenstine called his death "a tremendous loss to ...