ULA’s new Vulcan Centaur rocket aces 2nd test launch Space.comLive coverage: ULA to launch second test flight of its Vulcan rocket from Cape Canaveral Spaceflight NowVulcan competes second flight despite SRB anomaly SpaceNewsULA Vulcan launch: Live updates from Cert-2 mission countdown at Cape Canaveral, Florida Florida TodayNext-generation ULA Vulcan rocket launched on second test flight CBS News