Galaxy Cluster Abell 2218
Depicts: Abell 2218
Copyright: W.Couch (University of New South Wales), R. Ellis (Cambridge University), and NASA
This Hubble Space Telescope image of the rich galaxy cluster, Abell 2218, is a spectacular example of gravitational lensing. The arc-like pattern spread across the picture like a spider web is an illusion caused by the gravitational field of the cluster.
Last Update: 1 September 2019