Live updates from Tuesday's United Launch Alliance NROL-70 mission that launched a Delta IV Heavy from Cape Canaveral Space Force Station in Florida.

"A lot of you know that the Delta IV Heavy is, of course, the most metal of all rockets — setting itself on fire before it blasts into space": ULA CEO.

Once this version of Vulcan has successfully flown and been proven reliable, ULA plans to retire the Delta IV Heavy. Vulcan Centaur will also take over for the Atlas V rocket, which includes a ...

United Launch Alliance on Wednesday had its new Vulcan rocket certified by the Space Force so it can begin flying national security missions.

Both of the currently active ULA launch vehicles are beginning to phase out, to be replaced by Vulcan. Just five Delta IV Heavy launches remain on the manifest, all NRO launches procured under the ...