"Vulcan certification adds launch capacity, resiliency and flexibility needed by our nation's most critical space-based ...
The two companies will join three others selected last summer, including SpaceX, United Launch Alliance and Blue Origin.
The U.S. Space Force's Space Systems Command said on Thursday it had awarded contracts to Rocket Lab USA and Stoke Space to expand its portfolio of launch systems for critical space capability.
United Launch Alliance's Vulcan rocket is certified by the U.S. Space Force for National Security Space Launch missions.