The Vulcan Centaur rocket is a heavy launch vehicle that competes with SpaceX's Falcon 9. While it is still expensive (around $110 million per launch), it is around half the price of the Atlas V ...

Aerojet Rocketdyne’s RL10 engine is continuing to beat out its younger competitors, winning another future role as the upper stage engine for the United Launch Alliance (ULA) Vulcan/Centaur rocket.

All six missions will launch on ULA’s new rocket, Vulcan Centaur. The move was expected but requirement confirmation given Dream Chaser’s ability to launch on several launch vehicle options.