Engineers have built a modern Stirling engine that quietly turns the cold of outer space into steady mechanical power, using ...

Instead of absorbing energy from the sun to produce electricity, a new class of devices generates power by absorbing heat ...

This engine won't be fueling interstellar missions, but still finds an unexpected way to use deep space energy to generate power. Reading time 3 minutes Deep space may provide hidden sources of energy ...

For the hot end, an aluminium mount was pressed into soil, transferring the Earth’s ambient heat to the engine’s bottom plate ...