The visible universe contains about a trillion galaxies, in a dizzying variety of styles.
The blue scatter at bottom is Leo P, a nearby dwarf galaxy that is just one-millionth the mass of our Milky Way. It's almost pure hydrogen & helium--much like the galaxies of long ago.
https://www.stsci.edu/contents/news-releases/2025/news-2025-401 #space #science #nature