UC Davis engineers have invented a Stirling engine that captures Earth’s escaping heat to generate power from the night sky.

Scientists are learning how to turn the chill of outer space into a quiet source of electricity, using the night sky itself as a heat sink. By carefully managing how surfaces shed heat after dark, ...

A new solar device generates 15 times more energy: a breakthrough in thermoelectric generators converts solar heat into ...

Overview Energy has proven its solar power beaming satellite system works in motion, which it claims is a world first for high-power wireless energy transmission. The company is targeting megawatt ...

Discover how to build a simple DIY Stirling engine powered by heat from candles using an empty spray can and pen components. This step-by-step guide demonstrates how to construct the engine, build a ...

Explore how boxer engines really work, why they’re not just “flat” engines, and how Porsche and Subaru kept a 120-year-old ...

How Arizona’s Mesquite Solar complex became one of the nation’s largest solar sites and what its growth reveals about the ...

One of the difficulties of geoengineering is that in theory a single entity, like a startup company, could make decisions ...

Overview Energy's new space-based solar power concept leverages existing solar farm infrastructure to harvest sunlight 24/7.

Orbital solar power faces a $20 billion Cassiopeia build cost, giving you a clear view of where it could pay off first in practice. The design and ...

It may seem like a horse-drawn Zeppelin, but Astro Mechanica seems to be all-in on its revolutionary hybrid-electric ...

Discover how Mazda’s 13B-MSP Renesis evolved, its tech breakthroughs, and the issues that defined it, plus how it connects to ...