The slow race of getting NASA’s Space Launch System rocket pieced together for next year’s Artemis II moon mission jumped a big hurdle over the weekend. The 212-foot-tall core stage was placed Sunday ...

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.

Single Ukrainian raid ‘destroys four Russian helicopters’ in border region - Ukraine says its strike using US-provided ...