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

ULA's Vulcan is replacing the company's workhorse Atlas 5 rocket and the already-retired Delta 4 family of launchers.

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 ...

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 ...

The president calls on officials to ease permitting rules for rocket flights as more companies want to launch them.

At approximately 9 p.m. Tuesday night, residents of several East Coast states looked up and saw a swirling, glowing light ...

Pennsylvania residents witness a stunning celestial event: swirling lights in the sky. Discover what caused this mesmerizing ...

BURLINGTON, Vt. (WCAX) - Many viewers wrote in to WCAX News wondering about a mysterious light they spotted in the sky Tuesday night. Some sent pictures and videos. Our viewer Jessica said she was ...