United Launch Alliance picks Aerojet’s RL10 rocket engine for Vulcan upper stage by Alan Boyle on May 11, 2018May 11, 2018 at 11:46 am United Launch Alliance has chosen Aerojet Rocketdyne over Amazon billionaire Jeff Bezos’ Blue Origin space venture to provide the upper-stage rocket engine for its next-generation Vulcan launch vehicle. But the… Read More