Capitol Hill budget battle may limit initial funding of some National Security Space Launch missions
A ULA Vulcan rocket during a testing campaign (left) and a Falcon Heavy rocket at liftoff (right). Both launch vehicles were tapped to launch National Security Space Launch (NSSL) missions during the fifth and final ordering year procurement by the U.S. Space Systems Command. Images: ULA, SpaceX The U.S. Space Systems Command revealed the details …