Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New findings risk turning the tension into a crisis, scientists say.

Mysterious little red dots threatened to overhaul modern cosmology—but new research may have solved the celestial conundrum.

The Copernican principle states that the Earth is not in a special place in the Universe. Us humans are not privileged ...

Early data of “little red dots,” or LRDs, from the James Webb Space Telescope (JWST) appeared to suggest the presence of ...

"The Hubble tension is now a Hubble crisis." The mystery of the Hubble tension has deepened with the startling finding that ...

A new way to study 3D maps of galaxies in the cosmos without compressing the data is revealing new information about the dark ...

Across cosmic history, powerful forces have acted on matter, reshaping the universe into an increasingly complex web of ...

A "cosmic CT scan" performed by scientists using two very different cosmic surveys has revealed the cosmos is less clumpy and ...

the standard model of cosmology, or the Lambda Cold Dark Matter (LCDM) model. "This discovery poses a challenge to the LCDM model, as it may struggle to account for the formation of such small ...

However, one competing theory known as “timescape cosmology” suggests that many observations can be explained by differences in how time flows between dense regions of the universe (such as ...

A new computational method gleans more information than its predecessors from maps showing how galaxies are clustered and threaded throughout the universe.