David H. DeVorkin is emeritus senior curator in the history of astronomy and the space sciences at the National Air and Space Museum, Smithsonian Institution, Washington DC. What is the Universe?

A new program about cosmology will debut at the University of Wyoming Harry C. Vaughan Planetarium during April. “We have a new presentation April 17 on cosmology,” said Max Gilbraith, the planetarium ...

This sketch is of the cosmic microwave background timeline of the universe in the Lambda Cold Dark Matter model. The accelerated expansion shown in the last third of the timeline represents the dark ...

Last year, cosmologists working on the Dark Energy Spectroscopic Instrument (DESI) reported hints that the mysterious dark energy thought to be driving the expansion of the universe may be weakening ...

Cosmology Careers: Cosmology is the only science that views the universe as a single, dynamic system, whereas many other sciences focus on the interior of the cosmos. It works at the most extreme ...

A Simon Fraser University cosmologist believes his team's new research may bring them a step closer to cracking one of science's biggest questions—the Hubble tension. The quest to determine how fast ...

A recent study published in The Astrophysical Journal Letters has provided the most precise distance to the Coma Cluster of galaxies yet — and also has deepened a crisis in cosmology. The problem is ...

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. Reading time 3 minutes The ...

Let's rewind the clock back…oh, I don't know, let's say a hundred years. It was 1917, and Einstein had just developed his general theory of relativity. It was a masterpiece, giving us our modern-day ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The expansion rate of the universe may be slowing down, rather than ...

To study the origins of our universe is to struggle with profound chicken-or-egg questions. We know the Big Bang happened. Cosmologists can see its afterglow in the sky. But no one knows whether the ...

Confucian cosmology was never about superstition. Its real power lay in de-centering authority – binding rulers to a higher standard they couldn’t control. The statue at Fan Zhongyan’s tomb site in ...