Astronomers have discovered the smallest dwarf galaxy ever seen. It is a mystery how the satellite galaxy of Andromeda survived the blistering conditions of the early universe.

The Hubble and Chandra space telescopes are hunting for rogue black holes wandering through dwarf galaxies, which could provide a fossil record of how supermassive black hole growth in the early ...

A tight clump of four star clusters sits in the Perseus galaxy cluster, and at first glance it looks like nothing special. No bright spiral arms.

BLOOMINGTON, Ind. — An astronomer studying small irregular galaxies has discovered a remarkable feature in one of them that may provide key clues to understanding how galaxies form and the ...

One of the many amazing things about the NASA program is its ability to capture images from far off galaxies that none of us ...

A new image from the Hubble Space Telescope shows a small dwarf galaxy called IC 3430 that’s located 45 million light-years away. This galaxy is classified as both a dwarf galaxy, because of its small ...

Astrophysicists for the first time have calculated the original mass and size of a dwarf galaxy that was shredded in a collision with the Milky Way billions of years ago. Reconstructing the original ...

Space is infinitely bigger than you could possibly imagine. And, while the way that the universe expands is still a mystery to scientists, we continue to observe what we can of the universe to learn ...

An intermediate-mass black hole lurking undetected in a dwarf galaxy revealed itself to astronomers when it gobbled up an unlucky star that strayed too close. The shredding of the star, known as a ...

As machine learning approaches get more and more sophisticated, they are increasingly used in astronomy for difficult tasks like spotting dim and distant galaxy clusters. It can be tremendously ...