Live coverage: ULA to launch first national security mission on a Vulcan rocket
A United Launch Alliance Vulcan rocket stands at Space Launch Complex 41 at Cape Canaveral Space Force Station ahead of the launch of the USSF-106 mission. Image: Michael Cain/Spaceflight Now More than four months after it was certified to fly national security payloads for the United States government, United Launch Alliance is on the cusp of launching just such a mission with its Vulcan rocket. The 202-foot-tall (61 m) rocket will launch a pair of satellites on a mission collectively referred...












