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

A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, ...

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

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

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

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

There's always a touch of melancholy when a chapter that has absorbed years of work comes to an end. In the case of the ...

This is the light echo of the Big Bang, the first light that freely moved through the universe. This relic is crucial to our ...

New measurements of radio galaxies reveal that the solar system is racing through the universe at over three times the speed ...

For the past few years, a series of controversies have rocked the well-established field of cosmology. In a nutshell, the predictions of the standard model of the universe appear to be at odds with ...

UChicago physics Prof. Bonnie Fleming, who is also the chief research officer at Fermi National Accelerator Laboratory, is ...