The James Webb Space Telescope has captured images of “little red dot” galaxies that appear to have an unusually high density of stars, challenging our understanding of galaxy formation. These galaxies are so tightly packed with stars that it is unclear how they exist without collisions. Astronomers are puzzled by the existence of these bright and red galaxies, posing big questions about the mechanisms behind their formation. This discovery raises intriguing possibilities about the nature of galaxies and the processes that govern their evolution.
https://www.newscientist.com/article/2445967-astronomers-puzzled-by-little-red-galaxies-that-seem-impossibly-dense/