ULA’s Vulcan Centaur rocket is ‘go’ for 2nd-ever launch on Oct. 4 Space.comULA set for second Vulcan launch SpaceNewsULA Vulcan rocket launch scheduled from Cape Canaveral. What time is liftoff? Florida TodayLaunch Roundup: Vulcan ready for second flight; Hera mission set to study asteroid NASASpaceflight.comCan ULA clear the final hurdle on Vulcan? Defense One