Fusion energy, the same process that powers the Sun and stars, has moved from a theoretical promise to an active engineering race. A handful of private startups, backed by billions in venture capital ...

Claims of “net energy gain” in fusion experiments often exclude the massive energy consumed by the full system, leading to misleading headlines. Even under optimistic timelines, commercial fusion ...

Fusion power promises to generate large amounts of clean electricity from nearly limitless fuel. This article explains the main approaches and the companies that use them.