In theory, water-based propulsion systems are a low-cost, safer alternative to conventional engines. Water is easier to ...

Rolls-Royce is developing a hybrid jet engine designed to reduce flight emissions by roughly 30%, a target that places the British manufacturer squarely in a high-stakes race among engine makers to ...

NASA engineers have successfully tested a new breed of reaction control engine and propulsion system. Aimed at furthering NASA’s space exploration goals, the tests helped investigate the possibility ...

Pratt & Whitney shared a new video about the XA103 engine, with a computer-generated rendition of what could be an ...

General Atomics and NASA have successfully tested a new type of nuclear thermal propulsion reactor fuel at the NASA Marshall Space Flight Center in Alabama. The new fuel could help power propulsion ...

GE's Defense & Propulsion unit gains steam on major engine contracts and double-digit order growth-can momentum carry into ...

Aerojet, a GenCorp (NYSE:GY) company, successfully completed 250 hot-fire test sequences of its legendary R-4D 100-pound-thrust bipropellant engine. The test included over 20,000 starts under a broad ...

A United Technologies Corp. (NYSE: UTX) subsidiary has reached an agreement with the Defense Department to produce lots 9 and 10 of F135 engines for the Lockheed Martin-built (NYSE: LMT) F-35 ...

Space has a trash problem, with defunct satellites, rockets, and smaller broken bits orbiting the Earth at high speeds. The amount of space junk is only increasing, raising the risk of collision with ...

It seems too good to be true, but UK-based Pulsar Fusion has revealed its new Sunbird self-contained nuclear rocket tug that uses a fusion propulsion engine that could reduce a trip to Mars to under ...

The 2025 Wards 10 Best Engines & Propulsion Systems list is out, and nine of the 10 winners are either hybrid engines or all-electric powertrains. The one purely ICE engine on this year’s list is none ...