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 ...

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 ...

Space-based solar power, a long-envisioned technology, is gaining momentum as a crucial solution to meet growing energy demands and achieve decarbonization targets. This technology offers significant ...

NEW YORK — Elon Musk vowed this week to upend another industry just as he did with cars and rockets — and once again he's taking on long odds. The world's richest man said he wants to put as many as a ...