A ULA Vulcan rocket launched a Space Force mission, but an unexpected light show from its boosters sparked questions. Here's what we know.

The U.S. Space Force has reassigned another GPS satellite launch from United Launch Alliance to SpaceX, marking the fourth ...

And once again, the company the Pentagon is paying to launch it can’t answer the call. United Launch Alliance, a 50-50 joint venture between Boeing and Lockheed Martin, was supposed to launch the ...

Add Yahoo as a preferred source to see more of our stories on Google. United Launch Alliance suffered yet another fiery burn-through on one of its solid rocket boosters during a national security ...

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Reports suggest that the US Space Force is pausing missions on the Vulcan rocket until an anomaly observed during a February ...

United Launch Alliance's Vulcan Centaur reached orbit on February 12 despite "a significant performance anomaly" that saw one of its four solid rocket boosters burn through its nozzle during ascent.… ...

After two test flights, ULA's Vulcan rocket received its certification to fly national security missions.

Californians may soon see the powerful ULA Vulcan rocket blazing across the sky brighter and more widely visible than what is ...

A ULA Vulcan rocket launched a Space Force mission from Cape Canaveral on Feb. 12. Sparks were observed coming from a solid rocket booster shortly after liftoff, which ULA is reviewing. The mission, ...

A United Launch Alliance (ULA) Vulcan rocket carrying the USSF-87 mission for the United States Space Force’s Space Systems Command (SSC) lifts off from Space ...