For one, scientists observe a "cosmic fossil" called the cosmic microwave background (CMB). The first light that was free to ...

Dark matter makes up 85% of the universe, but researchers, including Vera Rubin herself, historically have had a hard time ...

A team led by the Italian National Institute for Astrophysics discovered the most distant known fossil galaxy — a relic of ...

The new galaxy, because of how far away it is, looks to observers exactly as it did when it was first created 3 billion years ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...

Astronomers from the Center of Astronomical and Space Education in Moscow report the discovery of a new star, which turned ...

World's largest digital camera observes cosmos, capturing detailed images of galaxies, asteroids, and stars changing ...

All eyes are on Comet 3I/ATLAS as astronomers worldwide chase the exotic ice ball through our solar system ...

The Vera C Rubin Observatory, located on a mountaintop in Chile, was built to take a deeper look at the night sky, covering ...

Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

Supermassive black holes are some of the most impressive (and scary) objects in the universe—with masses around 1 billion ...

High in the Andes Mountains of northern Chile, something extraordinary is happening. Perched on the peak of Cerro Pachón at ...