The galaxy cluster Abell 2744 (Pandora’s Cluster), was formed by a massive cosmic collision of at least four separate galaxy clusters. Images of the collision were captured and pieced together using the Hubble Space Telescope, the European Southern Observatory’s Very Large Telescope, the Japanese Subaru telescope, and NASA’s Chandra X-ray Observatory.
Source: Massive Cosmic Collision Captured By Telescopes via Geekosystem.
