A decade-long investigation into puzzling neutrino behavior has now ruled out one of the most widely discussed explanations: the sterile neutrino.

It’s a powerful technique, but small uncertainties at each step can add up, something critics argue may be behind the Hubble ...

Knotted structures once imagined by Lord Kelvin may actually have shaped the universe’s earliest moments, according to new ...

Guided tours at Koreshan State Park showcase the Utopian sect’s quirky cosmology, artifacts and historic buildings.

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.

New polarization maps from the Atacama Cosmology Telescope align with Planck’s results and confirm the lower early-universe ...

A new study, published on Arxiv, has deepened the cosmic puzzle surrounding the “Hubble tension,” an ongoing debate about the ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

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

"It means cleaning house, narrowing the viable paths forward, and no longer spending energy on what are evidently dead ends." ...