This controversial theory says the universe is subject to an ultimate, higher-order law that we can’t comprehend.

Why is the universe expanding at an ever-increasing rate? This is one of the most exciting yet unresolved questions in modern ...

The story begins with the black hole information paradox. According to relativity, anything that falls into a black hole is ...

On human timescales, the universe may as well be eternal. It’ll be here long after our species and our planet are gone, but ...

The Universe still holds many mysteries, and among the most intriguing are these invisible components known as dark matter ...

Astronomy is, in essence, an exercise in inference. We cannot touch the stars, nor scoop up galaxies in a lab. Instead, we ...

In many ways, Lina and Neriman's refugee journey from Iraq to Utah parallels that of a cosmic ray: covering great distances, ...

According to the model, dark matter may have started as particles that were hot, light, massless, and fast. As the universe ...

Progress in the foundations of physics is moving slowly. And yet it moves. Today I look at the five biggest problems in physics, what their status is, and how long it will ta ...

We have long taken it for granted that gravity is one of the basic forces of nature—one of the invisible threads that keeps the universe stitched together. But suppose that this is not true. Suppose ...

UC Santa Cruz physicist Stefano Profumo has put forward two imaginative but scientifically grounded theories that may help solve one of the biggest mysteries in physics: the origin of dark matter. In ...

A coordinate system for the polar model of the Wild Cards system and an example of the viral vector trajectories. Credit: Ian Tregillis A coordinate system for the polar model of the Wild Cards system ...