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

A shower of sparks was seen flying from near the Vulcan's engines about 38 seconds after Friday's liftoff from Cape Canaveral ...

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

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

Issues delivered straight to your door Giant X9 solar flare! Night sky tonight!

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 ...

Boeing and Lockheed Martin's joint venture, United Launch Alliance, said on Friday its Vulcan rocket successfully launched ...

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

United Launch Alliance is set to send its second Vulcan rocket into space Friday, weather permitting, though the details of ...

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

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