United Launch Alliance's Vulcan rocket experienced unexpected sparks during its certification flight, raising questions about its performance.

Sky watchers across North America are anxiously anticipating what could be the most intense display of aurora borealis in ...

United Launch Alliance's Vulcan rocket, under contract for dozens of flights for the US military and Amazon's Kuiper ...

United Launch Alliance (ULA) successfully launched its second Vulcan Centaur rocket, marking a key step toward certifying the ...

United Launch Alliance's new Vulcan rocket blasted off to space on Friday, a critical test of the Boeing and Lockheed Martin ...

United Launch Alliance has confirmed that its second Vulcan Centaur rocket launch was a success. The heavy-lift vehicle ...

United Launch Alliance (ULA) launched the second Vulcan rocket on Friday morning. While ULA reported the launch was successful, it also reported an ...

Vulcan VC2S rocket launched for the second certification (Cert-2) mission from Space Launch Complex-41 at Cape Canaveral ...

United Launch Alliance’s new Vulcan rocket blasted off to space on Friday, a critical test of the Boeing Co. and Lockheed ...

United Launch Alliance's Vulcan rocket completed its second successful flight on Friday, an important step for future use.

Despite an apparent problem with one of two strap-on boosters, the Vulcan reached orbit and otherwise performed as expected.

United Launch Alliance achieved a major milestone by successfully launching its next-generation Vulcan rocket from Cape ...