According to ULA, an Atlas V uses a common core booster, up to five solid rocket boosters, a Centaur upper stage in a single- or dual-engine configuration, and one of several sizes of payload ...

Scrub recap: Scroll down to review live updates from the Wednesday, April 9, weather-postponed liftoff attempt of a United Launch Alliance Atlas V rocket ... single RL10A-4-2 engine along with ...

Unlike SpaceX Falcon 9 — which is fully liquid propellant — ULA's Vulcan rocket utilizes solid rocket boosters at liftoff. "The BE-4 rocket engines ... rocket, Atlas V, will carry Amazon ...

National security missions are the main purpose of ULA's new workhorse rocket, which will eventually replace both the Atlas V rocket and the ... on a part in the engine nozzle of the solid rocket ...