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 ...

As it turns out, the cause of the strange light was a spacecraft, but not one piloted by little green men. There were two rocket launches last night that could have caused the anomaly, one launched ...

From Massachusetts to Maryland, sky watchers reported seeing what looked like an alien spacecraft overhead Tuesday night.No need for alarm — the strange light is likely the result of Tuesday night's ...

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 ...

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., ...

Starlink satellites launch weekly from Florida, but what are they exactly? Here's a look at SpaceX's Starlink satellites.

The United Launch Alliance (ULA) launched its first U.S. national security launch aboard its new Vulcan rocket on Tuesday night.

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