Atlas V Completes Final National Security Mission with Classified Space Force Payload

The mission marks the end of an era for ULA's Atlas V rocket as it transitions to the Vulcan Centaur.

The Atlas V launched from Cape Canaveral at 6:45 a.m. EDT, carrying the USSF-51 mission.
This flight was the 100th national security mission for United Launch Alliance.
Powered by a Russian RD-180 engine, this was the last national security launch for the Atlas V.
ULA will now focus on certifying its new Vulcan Centaur rocket for future missions.
SpaceX and ULA received a $1.8 billion boost in Space Force contracts due to increased mission demand.