The Vulcan to the Sky Trust has announced new May Engine Ground Run dates for XH558 while outlining progress toward a ...

George Spohrer and Ron Delevan, owner of RMDI Locomotive Services at the Coxton Railyard in Duryea, are shown in front of Vulcan Engine No. 4385. Vulcan Engine No. 4385, which weighs over 45 tons, was ...

Update for 4 p.m. ET on May 25: United Launch Alliance (ULA) is standing down from the planned Flight Readiness Firing (FRF) test of its new Vulcan Centaur rocket today (May 25). "During the countdown ...

A Centaur upper stage powered by two RL10 engines. Credit: Aerojet Rocketdyne WASHINGTON — Aerojet Rocketdyne announced April 11 it has received an order from United Launch Alliance for 116 engines ...

A United Launch Alliance (ULA) Vulcan VC2S rocket launched for the second certification (Cert-2) mission from Space Launch Complex-41 at Cape Canaveral Space Force Station, Florida. The Cert-2 mission ...

CAPE CANAVERAL, Fla. — Despite poor weather pushing back the time of its booster engine flight readiness firing (FRF) test, United Launch Alliance was able to complete the test of the company’s Vulcan ...

The first of two Blue Origin-manufactured engines for United Launch Alliance’s (ULA) new Vulcan rocket completed full-duration static firing in Texas, clearing the way for shipment to ULA’s factory in ...