This stunning image is full of young star clusters.

A novel "X-arithmetic" technique reveals how black holes shape the universe's largest structures.

Cosmic dawn galaxies seen by JWST reveal hidden clues about dark matter and keep rival theories about its true nature alive.

If you look across space with a telescope, you’ll see countless galaxies, most of which host large central black holes, billions of stars and their attendant planets. The universe teems with huge, ...

Why do some galaxies spin like giant tops, while others appear stationary? This question has puzzled astronomers for decades, ...

From your place inside the Milky Way, you are living within a galaxy that keeps a detailed chemical diary. Every star holds ...

Astronomers combined images from the James Webb Space Telescope and Hubble Space Telescope to create the highest-resolution image of two galaxies, IC 2163 on left and NGC 2207, on the verge of merging ...

The standard model for how galaxies formed in the early universe predicted that the James Webb Space Telescope (JWST) would see dim signals from small, primitive galaxies. But data are not confirming ...

Astronomers recently discovered a never-before-seen celestial phenomenon hiding in our own cosmic backyard. The mystery object, located just a short 15,000 light-years from Earth in our Milky Way ...

An international team led by the University of Oxford has identified one of the largest rotating structures ever reported: a ...

The Andromeda galaxy helped Edwin Hubble settle a great debate in astronomy. Stocktrek Images via Getty Images A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known ...

Learn more about the supermassive black hole in galaxy NGC 3783 and how its powerful blast is similar to our sun’s coronal ...