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 ...

Researchers have described combustion-control approaches that could help engines operate more stably on hydrogen blends as high as 30 percent, without requiring a complete redesign of the overall ...

Five years ago, in 2021, American space agency NASA announced it is working on yet another project that doesn’t involve, well, space: the Hybrid Thermally Efficient Core (HyTEC). Since then, NASA’s ...