Astronomers observe largest ever sample of galaxies up to over 12 billion light years away

Astronomers have identified the largest sample of galaxy groups to date using James Webb Space Telescope data. The study, covering 12 billion years of cosmic history, includes nearly 1,700 galaxy groups and proto-clusters. This dataset allows observation of some of the earliest galaxies and their evolution. The findings offer insights into galaxy formation, dark matter, and the universe's large-scale structure. Comparing early and recent structures helps scientists understand how galaxies and their environments have changed over time.