United Launch Alliance’s woes with its new Vulcan rocket have forced it to switch gears to only launching Atlas V rockets for ...

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

For the fourth time in a little more than a year, the US Space Force needs to send up a new satellite to replenish the ...

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

With SpaceX having been assigned the final GPS III mission, ULA's Vulcan will launch the USSF-70 mission in the summer of ...

The U.S. Space Force has swapped rockets for an upcoming GPS satellite launch, moving to a SpaceX Falcon 9 while the ...

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

Boeing and Lockheed investors can't count on revenue contributions from ULA for awhile. How big a problem is that?

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

See the rocket launch schedule for the week of Monday, March 23, where to watch rocket launches in Florida and how to watch ...

Add Yahoo as a preferred source to see more of our stories on Google. The United Launch Alliance Vulcan rocket took off on the Space Coast from Launch Complex 41 at Cape Canaveral, but what many ...

The United Launch Alliance Vulcan rocket took off on the Space Coast from Launch Complex 41 at Cape Canaveral, but what many noticed were the sparks seen coming from the rocket. After an initial delay ...