"Maybe we didn't understand the universe as well as we thought," said astrophysicist Justus Gibson of CU Boulder.

Sean Payton has revitalized the Broncos, the Commanders are in trouble, and more in our weekly NFL power rankings.

Astronomers have taken a superdetailed, zoomed-in photo of the Large Magellanic Cloud's "behemoth star." The stunning image, ...

The WEAVE telescope has documented a high-speed collision of galaxies in Stephan's Quintet, revealing the powerful shockwaves ...

Cygnus X-3, studied by XRISM, pairs a Wolf-Rayet star and compact object XRISM’s Resolve spectrometer captured intricate gas ...