SpaceX plans to launch the latest batch if its Starlink satellites now no earlier than 8:29 a.m. Aug. 14 from Launch Complex ...

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 ...

Even though the night of Aug. 12 was the peak of the Perseid meteor shower, the light that caught the most attention in West Virginia and across the East Coast wasn’t a fireball.

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

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 ...

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

That's what people all over the Philadelphia area wondered on Tuesday night after spotting a mysterious, glowing orb in the night sky. A bright orb surrounded by a faint, glowing mist was spotted over ...

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