Navajo leaders approved a 4,500-acre lease for a solar power project, but some community members still have questions.

NASA’s Gateway is coming to life with a solar-powered spacecraft built to light it up—and move it around the Moon.

Picture yourself standing under a torrential downpour. Every single raindrop slamming into your umbrella, your roof, the ...

The electricity it makes is expensive, its technology has been superseded, and it's incinerating thousands of birds ...