Hypersonic weapons promise unmatched speed and reach, but they are held back by a fundamental engineering problem: propulsion ...

The world's first hydrogen-fueled hypersonic jet may be able to reach a simply astounding speed of 12 times the speed of sound. That's about half the speed of satellites in low Earth orbit. The ...

Germany has awarded Polaris Spaceplanes a contract to develop and flight test a two-stage ...

Hypersonic flight is no longer science fiction. In recent years, interest in aircraft capable of exceeding Mach 5 has surged, driven by strategic competition, defense challenges, and NASA’s pursuit of ...

Polaris will build a two-stage, horizontal take-off and fully reusable hypersonic research vehicle, featuring a linear aerospike rocket engine. German company Polaris Spaceplanes announced on Jan. 27, ...

GE and Lockheed Martin have demonstrated a new rotating detonation engine ramjet design in a series of tests that show significant potential for efficiency gains. If developed into a full missile ...

DARPA will kick off development of a High-Mach Gas Turbine (HMGT) engine with a 15-month project worth up to $40 million to define the architecture and set the conceptual design, the agency said Sept.

Traveling at 5-times the speed of sound, skipping off the boundary of the upper atmosphere and descending upon enemy targets with unprecedented speed, emerging hypersonic weapons promise to massively ...