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 ...

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

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 ...

The Pentagon has launched its first experimental navigation satellite in nearly five decades, aiming to test out a new ...

The light people were seeing was from the Vulcan rocket launched by the United Launch Alliance. It took off from Cape ...

Visible across the Northeast, the bright, pill-shaped light was the exhaust plume from the United Launch Alliance's Vulcan ...

United Launch Alliance completed its first US national security mission with the newly developed Vulcan rocket, a key test of ...

National Weather Service staff at its Moon office got a few odd calls Tuesday night about a strange-looking blue swirl moving across the sky. “We had a couple of calls on the overnight shift,” said ...