On a battlefield saturated with buzzing quadcopters and roaring loitering munitions, a new aircraft is trying to disappear rather than dominate the noise. Ukraine’s Raybird reconnaissance drone, now ...

Rolls-Royce is ditching diesel for methanol with its new maritime engine, described as the world's first high-speed marine engine in its performance class to operate exclusively on pure wood alcohol ...

Scientists have created the world's hottest engine running at temperatures hotter than those reached in the sun's core. The team from King's College London and collaborators believe their platform ...