United Launch Alliance was hoping to ramp up its new Vulcan rocket launches this year, but won’t be launching any national ...

Vulcan is central to ULA’s effort to replace its Atlas 5 rocket and compete more directly for national security launches. With Vulcan missions on hold, the Space Force is now reliant solely on SpaceX ...

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

Add Yahoo as a preferred source to see more of our stories on Google. What does 3 million pounds of liftoff thrust look like? A large chunk of Florida residents may see it when United Launch ...

The U.S. Space Force has suspended all missions on the Vulcan rocket, built by United Launch Alliance, a joint venture of ...

Update: The United Launch Alliance has put out a statement declaring the mission a success and indicating plans to investigate an anomaly observed early in the flight on the solid rocket boosters. The ...

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

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

A growing body of peer-reviewed research shows that rocket launches and satellite reentries are depositing pollutants directly into the stratosphere, where they threaten to slow the recovery of ...