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

As it turns out, the cause of the strange light was a spacecraft, but not one piloted by little green men. There were two ...

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 ...

SpaceX launched a new batch of Starlink satellites from California and Florida to continue the growth of its broadband ...

Did you see it? A rocket launch from Tuesday night produced an incredible sight in the skies! Read more about what happened ...

“It was inexplicable,” said Nicholas McAlister, a fund-raiser at the University of Pennsylvania who witnessed it in the night ...

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

Instead, the twisting white swirl that sent social media alight was a fuel dump from a rocket launch, EarthSky authors said. The website that features stories about all things space and the night sky ...

RKLB's Electron rocket secures major contracts and expands its role as a dominant force in the fast-growing small satellite ...

Upstate New York residents were perplexed by a glowing ethereal light that appeared in the sky on Tuesday night, according to ...

SAN FRANCISCO (AP) — A federal judge in San Francisco is weighing whether the Trump administration violated federal law by ...