A Chilean observatory has unveiled the largest telescope in the world, equipped with a simply massive camera and capable to ...

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

The rate of human-produced light is increasing in the night sky by as much as 10% per year, making it difficult for astronomers to study the night sky.

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

Astronomers have spotted two massive galaxies locked in a cosmic tug-of-war 700 million light-years from Earth — and for the ...

Faint Bridge of Stars Reveals Rare Galactic Merger Astronomers have created one of the most detailed views ever captured of a ...

Astronomers have discovered a ghostly, million-light-year-long bridge of stars connecting two massive galaxies within the ...

Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers ...

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

Astronomers have captured the first optical evidence of a million-light-year-long bridge of stars being torn from one massive ...

Harvard's Avi Loeb suggests comet 3I/ATLAS could be alien tech, but most scientists say it's a natural interstellar object with no threat to Earth.