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

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 ...

"We believe in a future where this is the engine powering everything..." Pam Melroy, one of only two women to ever command a NASA space shuttle, is channeling her decades of experience across the U.S.

The Earth is much larger than most people realize. You need to use engines if you want to efficiently navigate large sections of the planet. Everything from cars to planes relies on engines, but they ...