NASA’s X-43A scramjet aircraft hit Mach 9.64 at 110,000 feet in November 2004—and that record for an air-breathing aircraft ...

In March 2025, a missile launched from a test range in the Pacific arced into the upper atmosphere, separated its rocket ...

Australian company Hypersonix Launch Systems is not only looking to make the delivery of satellites into orbit cheaper and more accessible, but also greener. It is developing a reusable launch system ...

Scramjet from Popular Science. The first true reusable, free-flying scramjet could be Darpa's HTV-3X. It is also known as Blackswift. The HTV-3x could make its inaugural flight as early as 2012.

A small group of Australian scientists made aviation history July 30 with the successful atmospheric test of a supersonic air-breathing engine in flight. Working with a budget most big science ...

SYDNEY, Australia --An experimental, hypersonic air-breathing rocket that could herald a low-cost, high-speed space age was launched successfully Tuesday in the Australian Outback. But scientists said ...

Aerojet Rocketdyne and the US Air Force Research Laboratory (AFRL) have achieved a new record thrust output from a scramjet engine, providing a boost for hypersonic flight. A year of ground testing ...

According to the U.S. Air Force, the flight test for the experimental X-51A WaveRider plane which could potentially travel up to 4500mph has resulted in failure. As previously reported on SmartPlanet, ...

A team of engineers at the Air Force Research Laboratory and Air Force Test Center have set a record for the highest thrust produced by an air-breathing hypersonic engine in the military branch's ...