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

The rocket company, jointly owned by Boeing and Lockheed Martin, has been racing to prepare its vehicle to carry military ...

United Launch Alliance sent its second Vulcan rocket into space on Friday morning after delays that took the launch back more ...

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

United Launch Alliance had a successful launch of its second certification flight of the Decatur-built Vulcan rocket Friday morning from Cape Canaveral Space Force Station, meaning it can finally see ...

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

ULA's heavy-lift rocket needs to prove that it's got what it takes to launch military payloads to orbit. After today's not-so ...

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

Vulcan, developed to replace ULA's workhorse Atlas V rocket and rival the reusable Falcon 9 from Elon Musk's SpaceX, took off ...

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

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