Add Yahoo as a preferred source to see more of our stories on Google. (NewsNation) — The Department of Defense announced Monday the United States successfully completed two test flights of a reusable ...

A California-based startup pulled off two hypersonic flights of its reusable aircraft, which became the first fully autonomous drone to reach Mach 5 speeds. Stratolaunch’s Talon-A2 completed a series ...

Japan has completed a ground combustion test of a ramjet engine designed for a Mach 5-class experimental aircraft, advancing the country’s ambitions in hypersonic transportation and reusable ...

The company's Synergetic Air Breathing Rocket Engine (SABRE), with its regenerative cooling system that could protect a hypersonic jet engine by instantly cooling the incoming air using liquid ...

Hypersonic vehicles have become the latest military prestige technology, and the US seems to be lagging its rivals. That could change after the successful flight of an autonomous and reusable ...

An illustration of a hypersonic jet flying at high altitude - Naeblys/Getty Images Technology often feels like it's evolving at breakneck speed, but in many ways, commercial aviation has been stuck in ...

Theoretical tests say that this beast of an engine should be capable of hypersonic flight over Mach 5+ (3,836 mph / 6,174 km/h), at considerably higher efficiency than other detonation engines – and ...