One of the best-performing models in cosmology is also one with the least physical rationale behind it. Columnist Leah Crane ...

A peculiar object dubbed an 'X-ray dot' could help solve the mystery of the 'little red dots' discovered by the James Webb ...

Cyclic cosmology, or the big bounce, is the idea that the universe will eventually crunch back together and then go through another big bang. Columnist Leah Crane finds that, appropriately, it’s comin ...

The conclusion of DESI's first survey marks an important milestone for cosmology, which finds itself in a bind for the best reasons.

A Simon Fraser University cosmologist believes his team's new research may bring them a step closer to cracking one of science's biggest questions—the Hubble tension. Subscribe to our newsletter for ...

By studying galaxy clusters separated by hundreds of millions of light-years, Penn physicist Patricio Gallardo and collaborators show that the laws of gravity described by Newton and Einstein still ...

"The Story of Everything" documentary argues scientific discoveries about the universe, DNA and fine-tuning point to the ...

A good chunk of cosmology is riding on whether dark matter exists or not. But what makes us so certain that dark matter is ...

This sketch is of the cosmic microwave background timeline of the universe in the Lambda Cold Dark Matter model. The accelerated expansion shown in the last third of the timeline represents the dark ...