Our Milky Way Galaxy is one of three large galaxies in the Local Group of Galaxies. The other large galaxies are the Andromeda Galaxy, and Messier 33 (the 33rd entry in Charles Messier's catalog ...

The James Webb Space Telescope has zoomed in on Leo P, a tiny galaxy with some big things to say about star formation.

Newly discovered Quipu, a superstructure in which galaxies group together in clusters and clusters of clusters, is the ...

Astronomers have discovered an extremely rare group of five 'dwarf' galaxies that are 'interacting with each other' about 117 million light years away from Earth Dwarf galaxies contain a few ...

Caption A group of galaxies nicknamed the Copeland Septet, in the constellation of Leo. Astronomers using images from Kitt Peak National Observatory and Cerro Tololo Inter-American Observatory ...

A bouquet of thousands of stars in bloom has arrived. This composite image contains the deepest X-ray image ever made of the ...

Arp 282: This image from the NASA/ESA Hubble Space Telescope feels incredibly three-dimensional for a piece of deep-space imagery. The image shows Arp 282, an interacting galaxy pair composed of the ...

This image from the NASA/ESA Hubble Space Telescope features Arp 72, a very selective galaxy group that only includes two galaxies interacting due to gravity: NGC 5996 (the large spiral galaxy) and ...

Isolated, low-mass galaxies help researchers study the impact of reionization on their star formation histories (SFHs) ...

Many of the observable properties of active galaxies are related to plasma processes in the sources, and these relate to terrestrial fusion plasma physics. Work in the group on particle acceleration ...