Finding dwarf galaxies in Euclid's view of Perseus:

This image highlights the location of a few dwarf galaxies hidden in this image of the Perseus cluster of galaxies captured by the Euclid space telescope. Dwarf galaxies are small galaxies with only a few billion stars – a small amount compared to the 100 billion stars in our Milky Way.

Read more about Euclid’s view of the Perseus cluster of galaxies

Explore this image at the highest resolution in ESASky

Read more about Euclid's first images

[Image description: This square astronomical image shows thousands of galaxies across the black expanse of space. The closest thousand or so galaxies belong to the Perseus Cluster. The most prominent members of the cluster are visible in the centre of the image and appear as large galaxies with haloes around them in yellow/white, comparable to streetlamps in a foggy night. The background of this image is scattered with a hundred thousand more distant galaxies of different shapes, ranging in colour from white to yellow to red. Most galaxies are so far away they appear as single points of light. The more distant a galaxy is, the redder it appears.]