By studying faint distortions in galaxy shapes across a vast region of sky, scientists probed the hidden structure of the universe. In the standard picture of the universe, nearly everything is hidden ...

Recent observational breakthroughs are beginning to challenge the long-standing view of dark energy as unchanging. Data from the Dark Energy Spectroscopic Instrument ( DESI ), an advanced survey ...

JWST spots a mature early-universe spiral as CERN reveals how light nuclei form in extreme collisions, challenging core ...

The universe is expanding at an accelerating rate, but cosmologists can't seem to agree on exactly how fast.

Current physics is speeding toward a breaking point, as astronomers confirm that the Hubble tension in new data.

Keck Observatory reports that spectroscopy from its Keck Cosmic Web Imager, combined with data from NASA’s James Webb and ...

The Atacama Cosmology Telescope in Chile not only confirmed one of the greatest mysteries in the universe—it also ruled out ...

The Atacama Cosmology Telescope in Chile not only confirmed one of the greatest mysteries in the universe—it also ruled out dozens of models that attempted to solve it.

In the leading model of cosmology, most of the universe is invisible: a combined 95% is made of dark matter and dark energy.

Two researchers from an astrophysics institute in Pune have discovered one of the most distant spiral galaxies ever observed ...

According to the standard cosmological model, the Universe has been in a phase of accelerated expansion for several billion years—an expansion expected to continue forever, leading to a colder, ...