KENNEDY SPACE CENTER, Fla. — A decision on what engine will power United Launch Alliance’s next-generation Vulcan rocket could be pushed back until next spring depending on the timing of a key engine ...

WASHINGTON — The chief executive of United Launch Alliance said Nov. 9 that he doesn’t feel any urgency to select a main engine for his company’s next-generation Vulcan rocket, despite an impending ...

Blue Origin’s BE-4 engines are being placed onto United Launch Alliance’s Vulcan rocket booster. (ULA Photo) Amazon founder Jeff Bezos’ Blue Origin space venture says it has completed delivery of the ...

SEATTLE/ORLANDO, Fla. (Reuters) - Blue Origin, the space company founded by Amazon.com Inc Chief Executive Officer Jeff Bezos, has won a contract to supply engines for United Launch Alliance's massive ...

BE-4 Flight Engine 2 for ULA completed acceptance testing in West Texas. Credit: ULA/Blue Origin CAPE CANAVERAL—At the request of its customer, United Launch Alliance (ULA) is delaying the debut ...

United Launch Alliance has confirmed that its second Vulcan Centaur rocket launch was a success. The heavy-lift vehicle headed into orbit earlier today, moving United Launch Alliance (ULA) one step ...

WASHINGTON — United Launch Alliance has picked Aerojet Rocketdyne's RL10 engine to power the upper stage of its next-generation Vulcan rocket, the second such contract Aerojet has secured in as many ...

Aerojet Rocketdyne has successfully tested a full-scale, 3-D-printed thrust chamber assembly for its workhorse RL-10 rocket engine. (Aerojet Rocketdyne Photo) United Launch Alliance has chosen Aerojet ...