Galaxies are the building blocks of the universe. Clusters of galaxies, and clusters of clusters of galaxies, called superclusters, make up the structures in the geography of the universe. In this ...

Planets, asteroids and comets orbit more massive stars, and stars collect around supermassive black holes, forming galaxies.

Astronomers have used the James Webb Space Telescope (JWST) to find three of the earliest galaxies ever found. They exist less than 400 million years after the Big Bang—a whopping 13.4 billion ...

Here’s how it works. Astronomers have captured a breathtaking new image of thousands of galaxies, thanks to the Dark Energy Camera (DECam) mounted on the U.S. National Science Foundation's ...

"Our measurements imply that the supermassive black hole mass is 10% of the stellar mass in the galaxies we studied." Using the James Webb Space Telescope (JWST), astronomers have discovered ...

Ring galaxies are some of the rarest galaxies found throughout our universe, and for years scientists have scratched their heads, trying to figure out exactly how these galaxies came to be.

Ultra-faint dwarf galaxies are the faintest type of galaxy in the universe. Typically containing just a few hundred to a thousand stars—compared with the hundreds of billions that make up the ...

The detection of a "treasure trove" of stars was only possible because the light from the 44 new stars was magnified by a large cluster of galaxies, called Abell 370, in front of it, according to ...

An image shows six of the "little red dot" galaxies seen by JWST in the early universe. (Image credit: NASA, ESA, CSA, STScI, Dale Kocevski (Colby College)) "The little red dots also show some ...