A U.K. space tech company has revealed a secret project that could change how humans travel between planets. After ten years of quiet research, Pulsar Fusion has unveiled a nuclear fusion-powered ...

A UK startup successfully ignited plasma inside a nuclear fusion rocket prototype, marking progress toward advanced propulsion for future deep-space missions.

Pulsar Fusion, a UK-based rocket startup, says it fired plasma inside its Sunbird nuclear fusion rocket engine during a live demonstration on March 25, 2026, at a conference in California. The company ...

Plasma flashed inside the exhaust system, held in place by electric and magnetic fields. This scene marked a small but ...