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 ...

A successful rocket launch this week could mean big things for two large defense companies that co-own the space company.

The United Launch Alliance successfully launched a Vulcan Centaur rocket into orbit from Cape Canaveral Space Force Station ...

ULA's Vulcan successfully launched last evening, the company said, marking the rocket's long-awaited first National Security Space Launch.

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

The swirl in the sky isn't a common sight, but it's happening more and more as companies like SpaceX launch more rockets into ...

The Pentagon has launched its first experimental navigation satellite in nearly five decades, aiming to test out a new ...

What was the mysterious white spiral flying in the night sky as stargazers looked up during the Perseid meteor shower peak ...

The light people were seeing was from the Vulcan rocket launched by the United Launch Alliance. It took off from Cape ...

The L3Harris-built Navigation Technology Satellite-3 (NTS-3) satellite launched on a United Launch Alliance Vulcan rocket Aug ...