Ultra-diffuse local galaxies abound, say researchers.

Using cosmological simulations, an international team predicts that there may be up to 12 ultra-diffuse galaxies in the Local Group, a small cluster that currently contains approximately 60 known galaxies, including the Milky Way and Andromeda. Ultra-diffuse galaxies are faint and difficult to observe, but understanding their total number in the Local Group is crucial to our understanding of the cosmos. The discovery of these new galaxies could have far-reaching implications for our understanding of galaxy formation and evolution.