For decades, nuclear fusion has been viewed as the ultimate energy source—clean, powerful, and practically limitless. Most approaches to fusion involve enormous machines designed to squeeze plasma ...

Zap Energy’s three-meter reactor uses a lead-lithium liquid wall, cutting hardware needs and bringing cleaner, modular power ...

Fusion power has long been sold as the technology that could light our cities with the same process that powers the stars. Now a new line of research suggests those same reactors might also be ...