General Atomic's new nuclear fuel was subjected to the maximum heat of a reactor for 20 minutes in the latest tests.

Space debris, often referred to as space junk, consists of defunct satellites, spent rocket stages, and fragments from collisions or disintegration events. As humanity continues to expand its ...

Assembly of the Artemis II moon rocket has reached its latest milestone with the stacking of the twin boosters' right forward ...

A few minutes after 2:00 A.M. EST, a hulking, 320-foot-tall rocket slipped its tethers at the Cape Canaveral Space Force Station and heaved itself into the sky on a bluish-white pillar of flame ...

While SpaceX lost the upper stage of its new Starship in a flight test, the futuristic spacecraft presages a spaceflight revolution, says a leading U.S. space scholar.

NASA’s Goddard Space Flight Center is flying two creatively named missions out of the Poker Flat Research Range in Fairbanks. The first mission, designated as “Ground Imaging to Rocket ...

Jeff Bezos' spaceflight company Blue Origin on Thursday launched its new mega-rocket, called New Glenn, into orbit for the ...

Jan. 21 (UPI) --Elon Musk's SpaceX launched a pair of Falcon 9 rockets loaded with a combined four dozen Starlink communication satellites into space Tuesday morning from both U.S. coasts.