SAN FRANCISCO – Mantis Space, a New Mexico startup planning a constellation to supply solar power to spacecraft, emerged from stealth March 12 with $10 million in seed funding.

Mantis Space closed a $10 million seed round to develop laser-based solar power transmission for satellites operating in the shadow of the Earth.

The company is seeking F.C.C. approval to test an idea to reflect sunlight to Earth at night, possibly powering solar panels. Critics say it could be bad for people and wildlife.

The upper half of the photo is dominated by a vast desert landscape, which is home to the Ouarzazate solar power station. We ...

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 ...

Beaming limitless clean power down to Earth from huge solar arrays in space has moved a step closer after a company claimed a “world first” breakthrough in developing a key technology. Space Solar, ...

Russia and China can black out military satellites in seconds. A Latvian startup says nuclear-waste generators using 5x less fuel could keep satellites—and lunar bases—running.

Early science fiction writers and mid-20th-century engineers envisioned solar power satellites, but economic and technical barriers stalled progress for decades. Elon Musk and Jeff Bezos have revived ...