Space propulsion company Pulsar Fusion has achieved “first plasma” in its Sunbird nuclear fusion rocket, designed to propel rockets faster than any object has ever traveled.

UK-based Pulsar Fusion announced it has successfully achieved first plasma in its Sunbird nuclear fusion rocket exhaust system. The demonstration, a world’s first for a rocket of this type, was ...

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 ...

UK-based startup Pulsar Fusion has successfully ignited the world’s first fusion rocket. The ignition of plasma in its Sunbird exhaust system is a critical step towards developing a revolutionary ...

Plasma flashed inside the exhaust system, held in place by electric and magnetic fields. This scene marked a small but closely watched step in Pulsar Fusion’s bid to build a fusion-powered space tug.