Astronomers have long thought the universe should look generally the same in every direction, but an anomaly in the radiation ...

What if the universe remembers? A bold new framework proposes that spacetime acts as a quantum memory. For over a hundred ...

What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy clusters, and dark matter.

We know how the universe began. An event we call the Big Bang started it all about 13.8 billion years ago. How the universe ...

A controversial prediction about black holes and the expansion force of the universe could explain a cosmology mystery ...

If ultimately true, the universe will reach its maximum size around 11 billion years from now. At that point, physics (and ...

This article, originally titled "The Man Who Discovered the Universe," is from the Summer 2025 issue of Air & Space Quarterly ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. About a century ago, scientists were struggling to ...