In a groundbreaking development, scientists have engineered a revolutionary engine that utilizes the cold of space to generate power. This innovative device, operating without traditional fuels, draws ...

A countdown is underway at NASA's Florida spaceport, ticking down the days until the public can experience a rocket engine test closer than ever before — by standing directly under the engine's nozzle ...

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 ...

The reusability of different parts of a space rocket has opened the doors to a literal flood of launches to Earth orbit and beyond. Thanks to the fact that space companies now no longer have to make a ...

Engineers have built a modern Stirling engine that quietly turns the cold of outer space into steady mechanical power, using the night sky as a heat sink instead of a fuel tank. By radiating heat away ...

Here’s what you’ll learn when you read this story: Stirling engines, which have been around for centuries, leverage temperature differentials in a gas to do light mechanical work. A new study ...

Sierra Space completed a test campaign on Vortex 35,000 lbf liquid engine designed for upper-stage applications. Credit: Sierra Space WASHINGTON — The U.S. Air Force awarded Sierra Space a $16 million ...