Unlike SpaceX Falcon 9 — which is fully liquid propellant — ULA's Vulcan rocket utilizes solid rocket boosters at liftoff. According to Bruno, a manufacturing defect on a part in the engine ...

The new rocket launched again last October, on a test flight that did not carry any customer payloads. Vulcan achieved its major objectives on that mission as well, according to ULA, despite ...

SpaceX has launched at a rate nearly 34 times higher than United Launch Alliance since the start of 2023, but ULA has more ...

ULA's move to this American-made engine for Vulcan concluded the United States' reliance on the RD-180 Russian rocket engine. About United Launch Alliance All rockets are not created equal.

A couple of news reports in recent days have suggested that the inaugural launch of Amazon’s Project Kuiper has been ...

ULA's Vulcan rocket has been certified by the US Space Force for national security missions after completing a rigorous certification process. The certification process included two successful test ...

Vulcan achieved its major objectives on that mission as well, according to ULA, despite encountering a problem — the failure of an engine nozzle on one of its two solid rocket boosters.