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

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

What are the mysterious dark matter and dark energy that seem to account for so much of our universe? Why is the universe expanding? For the past 30 years, most cosmologists have looked to the ...

The clearest pictures yet of the newborn cosmos strengthen the prevailing model of the universe but deepen a mystery about its expansion rate. Measurements of this rate, known as the Hubble constant, ...

Matrix models have emerged as a powerful framework in theoretical physics, offering a nonperturbative approach to describing quantum space-time. In these models, fundamental degrees of freedom are ...