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

Theories suggest the display came from either the European Space Agency's Ariane 6 rocket or the United Launch Alliance's ...

United Launch Alliance's Vulcan rocket launches its first national security mission, and Europe's Ariane 6 takes off on just ...

ULA Vulcan Launch completes its first National Security Space Launch mission, taking the reins from the Delta IV Heavy for ...

Vulcan rocket lifted off from Cape Canaveral shortly before 9 p.m. on Tuesday for the U.S. Space Force USSF-106 mission in ...

In the near-term, ULA will switch back to launching its soon-to-retire Atlas V rocket, the Vulcan rocket's predecessor. The ...

A successful rocket launch this week could mean big things for two large defense companies that co-own the space company.

United Launch Alliance's Vulcan Centaur lifted off for the third time ever in an experimental launch to put navigation ...

The Pentagon has launched its first experimental navigation satellite in nearly five decades, aiming to test out a new ...

The L3Harris-built Navigation Technology Satellite-3 (NTS-3) satellite launched on a United Launch Alliance Vulcan rocket Aug ...