The shape of the universe is not something we often think about.

About a century ago, scientists were struggling to reconcile what seemed a contradiction in Albert Einstein’s theory of general relativity. Published in 1915, and already widely accepted worldwide by ...

Add Yahoo as a preferred source to see more of our stories on Google. About a century ago, scientists were struggling to reconcile what seemed a contradiction in Albert Einstein’s theory of general ...

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the universe is expanding faster and faster remains one of the most intriguing ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding? Astronomers have tried two main methods to figure it out, but their numbers don’t ...

The term “expanding universe” is often misunderstood, even by people familiar with astronomy. This explanation breaks down what actually expands and what does not, using modern cosmology rather than ...

In an unprecedented step, researchers crafted a detailed model compatible with the universe’s accelerated expansion.

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...