Galaxy clusters are large groupings of galaxies held together by gravity. They are the largest known gravitationally bound structures in the universe, containing hundreds to thousands of galaxies. Superclusters are even larger structures that consist of multiple galaxy clusters and groups interconnected by filaments of dark matter and gas. These cosmic conglomerates play a crucial role in the cosmic web, influencing the distribution and evolution of galaxies on the largest scales.
Come for the Scenery, Stay for the Stars