Astronomers have long struggled with a troubling puzzle: a significant portion of normal matter in the universe appeared to ...

The halo is more extended that astronomers originally thought, and contains enough hydrogen gas to resolve the problem of the ...

A slowly spinning universe could resolve a puzzle in physics known as the Hubble tension, a new model suggests.

Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding?

Zhúlóng is the most distant spiral galaxy ever seen. It formed 1 billion years after Big Bang, yet has a calm structure like ...

The rotating model, which does not break any known law of physics, suggests the universe could spin around once every 500 billion years. This would be far too slowly to detect easily, but enough to ...

Hubble’s 35‑year celebration brings a vibrant reimagining of the Sombrero Galaxy, revealing hidden dust lanes and far‑flung ...

"We've always known that we need something to complete the puzzle, but we haven't really known what shape or form those ...

A never-before-seen image of the cosmic microwave background, combining data from the Atacama Cosmology Telescope (ACT) and ...

Could the universe be rotating? Discover how this theory may solve the Hubble tension in modern cosmology and physics.

For decades, astronomers have known something didn’t add up in our universe. The amount of “normal” matter—stars, gas, and ...