ULA's Vulcan is replacing the company's workhorse Atlas 5 rocket and the already-retired Delta 4 family of launchers.

United Launch Alliance completed its first US national security mission with the newly developed Vulcan rocket, a key test of ...

United Launch Alliance knocked out its first Vulcan Centaur launch of the year on Tuesday night, and its first ever for the ...

The United Launch Alliance is launching its powerful Vulcan rocket on its first national security mission for the U.S. Space ...

What time is liftoff? ULA's Vulcan could be visible for most of Florida pending weather. Did your city make the rocket launch visibility map?