Scientists think they found evidence of weird ancient stars called "dark stars" that are powered by dark matter instead of ...

University of Arizona astrophysicist Erika Hamden takes readers on a romp through a "Weird Universe" in her debut popular ...

Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

New observations support the idea that hot, diffuse threads of gas called cosmic filaments connect clusters of galaxies ...

A vast filament of gas stretching across the cosmos may help solve the mystery of the Universe’s missing matter. Astronomers ...

The hit CBS sitcom The Big Bang Theory is a show that is quite famous for frequently featuring guest stars, and among the many that appear, Riki Lindhome is quite notable.

Scientists may have found a new way to detect some of the universe's most mysterious objects, primordial black holes (PBHs), ...

Black holes are expected to be the last giant objects left in the universe, but even they will slowly shrink and disappear ...

The camera, now bolted to the end of a giant telescope at the Rubin Observatory, is expected to shoot photos of 20 billion ...

Everything in space—from Earth and the sun to black holes—accounts for just 15% of all matter in the universe. The rest of ...