SpaceX plans to launch the latest batch if its Starlink satellites no earlier than 6:47 a.m. Aug. 14 from Launch Complex 40 ...

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

United Launch Alliance punched out its first Vulcan Centaur launch of the year Tuesday night, and its first ever for the ...

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

That's what people all over the Philadelphia area wondered on Tuesday night after spotting a mysterious, glowing orb in the ...

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?

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 ...

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

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

A mysterious ball of light was seen by people up and down the East Coast on Tuesday night. Cindy Zonneveld, of Ramsey, N.J., ...

Live updates from Tuesday night’s ULA USSF-106 mission that launched a Vulcan rocket from Cape Canaveral Space Force Station in Florida.