A giant whirlpool of light, known as a "SpaceX spiral," was recently spotted swirling across the night sky over Europe as a ...

A stunning blue light likely caused by SpaceX Falcon 9 rocket fuel illuminated the night skies over Europe on Monday.

Frozen fuel from the Falcon 9 rocket launched Monday created a luminous display for several minutes, and was seen by people from England to Eastern Europe.

Fusion has long been the propulsion end-goal for interplanetary travel, and a U.K.-based company thinks on its way to achieving that dream.

Scientists have gotten the best-ever view of 'space tornadoes' howling near the Milky Way's black hole. The cosmic twisters ...