Astronomers have just completed the largest high-resolution three-dimensional map of the universe, including more than 47 ...

How this process occurred, and what that matter consisted of, has long been something of a mystery. Now, however, scientists ...

A comprehensive new study combines decades of research to reveal that we're missing an essential component in our ...

Cosmological expansion is widely treated as a proven fact. It is not proven. For nearly a century, cosmology has told a ...

The far distant fates of the Universe offer a number of possibilities, but if dark energy is truly a constant, as the data indicates, it will continue to follow the red curve, leading to the long-term ...

The universe is expanding, and physicists cannot agree on how fast. In a preprint posted in late May 2026, the H0 Distance ...

Dark energy, which forms almost three-quarters of the universe, is the most mysterious stuff known to man. A new set of Chandra X-Ray Observatory data, however, has given scientists good information ...

According to physics, the universe and everything in it can be explained by just a handful of equations. They’re difficult equations, all right, but their simplest feature is also the most mysterious ...

Those of you who know my writing will know that I don’t use many analogies. Analogies have a very useful place in helping people understand difficult concepts, but they also have a tendency to be a ...

Relax, it’s only happening in theoretical physics—at least for now.

Using a new framework, astronomers arrived at the most precise measurement of our universe’s expansion rate—but things still ...