On one side are astronomers who use ground-based observatories to gather starlight from the depths of the universe. On the ...

The Prague Planetarium hosted a first-watch party to unveil the first images captured by the Vera Rubin Observatory ...

Examples of this include the discovery of the long theorized gravitational waves and the first image of a black hole, which ...

Astronomers have discovered a ghostly, million-light-year-long bridge of stars connecting two massive galaxies within the Abell 3667 cluster, 700 million light-years away. This glowing thread of ...

This score means that it’s likely to have been engineered instead of being a naturally occurring force.

A million-light-year bridge of stars links merging galaxies in Abell 3667. This optical evidence confirms a cosmic collision.

A cosmic formation known as the 'dumbbell nebula' will be visible from Earth in August. Will you need a telescope to see it?

We do not know what lies in interstellar space. There are an expected to be 300,000 larger than Death Star sized objects ...

Galaxy clusters are among the largest structures in our universe, consisting of hundreds or thousands of galaxies that have ...

In a preview of observations that will be made routinely by the Vera C. Rubin Observatory, astronomers found evidence ...

Since 2017, three interstellar objects have been spotted passing through our solar system: 1I/ʻOumuamua, 2I/Borisov… and just ...

A comet that was born in another solar system and could be billions of years old is hurdling through Earth’s solar system — a ...