How disorderly young galaxies grow up and mature

Using a supercomputer simulation, a research team has succeeded in following the development of a galaxy over a span of 13.8 billion years. The study shows how, due to interstellar frontal collisions, young and chaotic galaxies over time mature into spiral galaxies such as the Milky Way.

source https://www.sciencedaily.com/releases/2021/08/210827121447.htm