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 ...

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 ...

United Launch Alliance (ULA) has completed a 6-sec. hot fire of the methane-burning BE-4 engines that power the first stage of its new Vulcan rocket ahead of its debut launch. The Flight Readiness ...

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 ...