One of 2025's biggest smartwatch launches is $100 off in time for the holidays, but it's not likely to last long.

Why do some galaxies spin like giant tops, while others appear stationary? This question has puzzled astronomers for decades, ...

Supergirl director Craig Gillespie told us about a promise James Gunn made to him regarding the DCU. Fortunately, Gunn kept ...

The Hubble tension is especially troubling because it involves two sets of measurements that offer conflicting views of the ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from ...

Cosmic dawn galaxies seen by JWST reveal hidden clues about dark matter and keep rival theories about its true nature alive.

Galaxy clusters are the most massive objects in the universe held together by gravity, containing up to several thousand ...

“Our latest discovery helps solve a 20-year cosmic mystery,” co-lead author Daniel Whalen from the University of Portsmouth's ...

Astronomers have employed NASA's Chandra spacecraft to perform X-ray observations of a massive galaxy cluster known as SPT-CL ...

"We might lose the ability to observe about 30% of the faintest galaxies. We are at the point of starting to be able to see ...

For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to ...

The main story by writer Mark Waid and artist Jorge Jiménez will feature the two lead characters teaming up against a pair of ...