Strange cosmic phenomena of dark matter in a cluster of galaxies called Pandora in the Universe

This joint episode of the Hubblecast and ESOcast presents Abell 2744, an unusual cluster of galaxies nicknamed “Pandora's Cluster“ by the astronomers who have studied it. Looking at the galaxies, gas and dark matter in the cluster, scientists have reconstructed the series of huge collisions that created it, and have uncovered some strange phenomena never seen together before. Credit: ESA Hubble , ESO Visual design and editing: Martin Kornmesser Animation