Did you see it? A rocket launch from Tuesday night produced an incredible sight in the skies! Read more about what happened ...

As it turns out, the cause of the strange light was a spacecraft, but not one piloted by little green men. There were two ...

What was the mysterious white spiral flying in the night sky as stargazers looked up during the Perseid meteor shower peak ...

ULA's Vulcan is replacing the company's workhorse Atlas 5 rocket and the already-retired Delta 4 family of launchers.

Theories suggest the display came from either the European Space Agency's Ariane 6 rocket or the United Launch Alliance's ...

Pennsylvania residents witness a stunning celestial event: swirling lights in the sky. Discover what caused this mesmerizing ...

ULA Vulcan Launch completes its first National Security Space Launch mission, taking the reins from the Delta IV Heavy for ...

In the near-term, ULA will switch back to launching its soon-to-retire Atlas V rocket, the Vulcan rocket's predecessor. The ...

A successful rocket launch this week could mean big things for two large defense companies that co-own the space company.

The Vulcan, the United Launch Alliance's newer rocket, got off the ground from Florida on its first national security mission ...