A classified US Space Force mission aboard United Launch Alliance’s Vulcan rocket sparked strange light sightings across the eastern and midwestern United States.

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 ...

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

Vulcan launched the Space Force’s USSF-106 mission on Aug. 12 at 8:56 p.m. EDT from Cape Canaveral SFS, Florida, and spacecraft separation occurred approximately seven hours after liftoff, the service ...

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

Vulcan rocket lifted off from Cape Canaveral shortly before 9 p.m. on Tuesday for the U.S. Space Force USSF-106 mission in ...

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

Did you notice a strange white spiral in the sky over New Jersey the night of Aug. 12? Here's what it could have been.

A European rocket launched from French Guiana — not the American rocket launches the same night — was likely the source of ...

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