Astronomers have identified a vast, twisting chain of galaxies that appears to be rotating as a single structure, a kind of cosmic tornado that stretches across tens of millions of light years. If ...

Imagine waking up one day to find out you live inside a vast, invisible bubble — a region of space so vast it stretches a billion light-years across, and yet so elusive it leaves no visible boundary.

It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial, falling apart on cosmic scales. If you’re on the surface of Earth—and I’m ...

New telescope instruments now reveal distant galaxies in detail, reshaping how astronomers map dark matter, star formation, ...

A new theory claims dark matter and dark energy don’t exist — they’re just side effects of the universe’s changing forces. By rethinking gravity and cosmic timelines, it could rewrite our ...