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

About half of the non-dark matter in the universe cannot be accounted for by stars and galaxies alone. Now, scientists say ...

The James Webb Space Telescope has discovered Zhúlóng, a candidate for the most distant spiral galaxy in the universe. The ...

A blob of gas seen outside the Milky Way could be a type of starless, dark matter–dominated galaxy. Some scientists are skeptical.

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

Astronomers may have uncovered a hidden population of galaxies that could rewrite what we know about the universe's evolution ...

An international team led by NSF NOIRLab astronomer Christina Williams has discovered the most distant spiral galaxy known to ...

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

It drives the movements of stars and galaxies, but dark matter is invisible. While it remains a colossal mystery, a study ...

JADES-GS-z13-1-LA is a young galaxy shining just 330 million years after the Big Bang, signaling it's part of a process ...

Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our ...