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

The first two Vulcan test flights last year used a configuration of the rocket with two strap-on boosters to add an extra ...

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

Vulcan lifted off from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida just before 9 p.m. EDT. The ...

The company lofted an experimental navigation satellite on behalf of the U.S. military Tuesday at 8:56 p.m. EDT (0056 GMT on ...

The United Launch Alliance launched a Vulcan rocket Tuesday night from Florida as part of the first U.S. Space ...

This is a tough business. It takes a million things to go right, one thing to go wrong, said Col. Jim Horne, director of the ...

Live updates from Tuesday night’s ULA USSF-106 mission that launched a Vulcan rocket from Cape Canaveral Space Force Station ...

The United States Space Force’s USSF-106 mission is set to launch from Cape Canaveral Space Force Station on Tuesday night.

The Vulcan, the United Launch Alliance's newer rocket, got off the ground from Florida on its first national security mission ...

United Launch Alliance (ULA) is gearing up for a long-awaited comeback, returning to secretive payload lifts for the National ...

The first NSSL mission, the USSF-106, is set for lift aboard a United Launch Alliance (ULA) Vulcan rocket today (12 August ...