ULA's Vulcan is replacing the company's workhorse Atlas 5 rocket and the already-retired Delta 4 family of launchers.

The United Launch Alliance is launching its powerful Vulcan rocket on its first national security mission for the U.S. Space ...

Crew-10 mission to the International Space Station facilitated the return of Boeing Starliner astronauts in March.

Instead of a plane that is a long tube, Long Beach-based JetZero is developing a wedge-shaped plane called Z4 that is ...

Welcome home,” echoed the voice from SpaceX Mission Control as four astronauts drifted in the Pacific off Southern California ...

The four members of the SpaceX Crew-10 mission climbed aboard the Crew Dragon Endurance and departed the International Space ...

Four astronauts returned to Earth on Saturday after hustling to the International Space Station five months ago to relieve ...

A top Food and Drug Administration official is getting his job back, a spokesman for health agencies said Saturday, less than two weeks after he was ousted at the direction of the White House. Vinay ...

Four space travelers safely splashed down off the coast of San Diego Saturday after completing a mission aboard the ...