Andromeda XXXV is only about 20,000 times more massive than our Sun—very small, even for a satellite galaxy. For comparison, ...

A mysterious phenomenon at the center of our galaxy could be the result of a different type of dark matter. Dark matter, the ...

The findings, published in The Astrophysical Journal, suggest that these massive, disk-shaped galaxies were completely ...

Scientists say the discovery will help to understand one of the biggest questions in astronomy: how do galaxies evolve?

"They're so rare, and they're incredibly useful scientifically," said Conor O'Riordan of the Max Planck Institute for Astrophysics.

Instead of these large, hulking early galaxies that Webb observed, scientists expected there to be smaller and younger types of galaxies for that particular time period. Of course, this wouldn’t ...

In the background are many other dwarf galaxies hosting active black holes, as well as a variety of other types of galaxies hosting intermediate-mass black holes. (Credit: NOIRLab/NSF/AURA/J. da Silva ...