What was the mysterious white spiral flying in the night sky as stargazers looked up during the Perseid meteor shower peak ...

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

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

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

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

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

A United Launch Alliance Vulcan rocket is gearing up to carry a classified national security payload into space Tuesday night ...

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

Visible across the Northeast, the bright, pill-shaped light was the exhaust plume from the United Launch Alliance's Vulcan ...

The silver-and-red Vulcan — equipped with four side-mounted solid rocket boosters — will lift off Tuesday, Aug. 12, from Cape ...

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

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