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

Just after 10:35 p.m. on Tuesday evening, the sky over Connecticut lit up with an eerie glowing cloud that resembled a spiral ...

United Launch Alliance's Vulcan rocket launches its first national security mission, and Europe's Ariane 6 takes off on just ...

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 ...

The spiral effect seen in the sky over western Mass. on Tuesday night was likely caused by the Vulcan Centaur rocket launch ...

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

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 ...

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