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

As it turns out, the cause of the strange light was a spacecraft, but not one piloted by little green men. There were two rocket launches last night that could have caused the anomaly, one launched ...

From Massachusetts to Maryland, sky watchers reported seeing what looked like an alien spacecraft overhead Tuesday night.No need for alarm — the strange light is likely the result of Tuesday night's ...

A mysterious light spotted in the night sky over the eastern United States sparked UFO speculation online, but was likely the ...

Vulcan took the reins from ULA's Delta IV Heavy, one of the most prolific rockets in U.S. history at the time of its final ...

The spiral effect seen in the sky over western Mass. on Tuesday night was likely caused by the Vulcan Centaur rocket launch ...

The United Launch Alliance successfully launched a Vulcan Centaur rocket into orbit from Cape Canaveral Space Force Station ...

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

The swirl in the sky isn't a common sight, but it's happening more and more as companies like SpaceX launch more rockets into ...

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

What was the mysterious white spiral flying in the night sky as stargazers looked up during the Perseid meteor shower peak and Vulcan rocket launch?