ULA’s Vulcan Centaur took off with the USSF-106 mission from Space Launch Complex-41. This will be the maiden launch of this Falcon 9 rocket’s first-stage booster, called B1091.

Orbital transfer vehicles launch atop rockets, carrying other spacecraft that they deliver to specific, often hard-to-reach, ...

While many Southwestern Pennsylvania residents were looking skyward Tuesday night to catch a glimpse of the Perseid meteor ...

It took nearly a decade, billions in investment, and a geopolitical rupture to get here, but on Tuesday night the United States finally severed its last operational tie to Russian-made rocket engines ...

Did you see it? A rocket launch from Tuesday night produced an incredible sight in the skies! WGAL News 8's Meteorologist ...

These linkups happen when several planets appear to line up in the night sky at once. Such parades are fairly common, happening around every year depending on the number of planets. At least one ...

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?

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

Stargazers on the lookout for meteors were treated to an extra nighttime spectacular on Tuesday night as spirals appeared in the sky along the East Coast.

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

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