The last meeting of the American Astronomical Society (AAS) gave the opportunity to present the latest discoveries made by the Hubble Space Telescope. Among thise there’s a photograph with unprecedented detail of Abell 2744, also called Pandora Cluster, a giant galaxy cluster.

Astronomers had already observed Abell 2744 with the Hubble Space Telescope in 2011, investigating the history of this cluster. Their conclusions were that at least four galactic clusters had crashed into one another to form a super-cluster never seen before.