Portal’s heat exchanger thruster, known as Flare, fires up during a test in a vacuum chamber. (Portal Space Systems Photo) Bothell, Wash.-based Portal Space Systems says it has successfully tested its ...

Researchers in Malaysia designed a photovoltaic-thermal system that can be used in solar drying, space heating, rooftop systems, and off-grid thermal applications. It relies on a double-pass cooling ...

Add Yahoo as a preferred source to see more of our stories on Google. Energy companies are exploring alternative ways to access less conventional clean energy sources in a bid to support a global ...

Alex Knapp is a Forbes senior editor covering healthcare and science. Over the past decade, solar power has become the cheapest way to produce electricity. But its biggest challenge is that sometimes ...

Some of you may remember devouring those paperbacks with lurid, futuristic covers, imagining the worlds conjured up by Isaac Asimov, Arthur C. Clarke, Robert Heinlein, and Ray Bradbury: the planetary ...

Space-based solar power represents a transformative shift in renewable energy, capturing sunlight in orbit and transmitting electricity to Earth continuously. Orbiting photovoltaic arrays receive ...

You’ve always associated solar power with heat, bright sun, and hot panels. But what if some of the most exciting progress in photovoltaics isn’t about ...