Pandora's Cluster size and scale context

Pandora's Cluster, also known as Abell 2744, is a giant galaxy cluster shaped by a violent and complicated merger of smaller clusters. Its galaxies, superheated gas, and dark matter have been pulled apart and redistributed in different ways, making it one of the clearest natural laboratories for studying how ordinary matter and dark matter behave during colossal cosmic collisions. Read its scale context, comparisons, and journey links on the canonical object page.