US start-up Hermeus has flown its first supersonic-capable aircraft, the Quarterhorse Mk 2.1, marking a significant step ...

For the second time in just over nine months, an Atlanta-based company this week debuted a new supersonic test aircraft.

Hermeus successfully flew its latest Quarterhorse aircraft, marking the company’s second first flight in less than a year.

Aerospace startup Hermeus has taken another step toward challenging the Lockheed SR-71 Blackbird’s legendary supersonic speed ...

Hypersonic fight start-up Hermeus is advancing production of its first supersonic-capable aircraft. The company has released images of the Quarterhorse Mk 2 prototype progressing through assembly, ...

The hypersonic aircraft Hermeus Quarterhorse Mk 2.1 has completed its maiden flight. A first important step to test high-speed flights later.

COLORADO SPRINGS—Atlanta-based aircraft developer Hermeus has successfully completed the first flight of its Pratt & Whitney ...

The list of the most supersonic airplanes in the world, reaching several times the speed of sound, a barrier that once was a challenge to break but now almost every military aircraft can reach. This ...

With speeds exceeding 10,000 km/h and unpredictable maneuverability, the hypersonic weapons technology race is heating up.

The United States is preparing to test a new hypersonic missile that could dramatically ...