Abell 2667
Abell 2667 is a galaxy cluster in the constellation Sculptor. He is about 3.2 billion light -years away from Earth and has an area of about 2.4 million light years. The name is derived from the entry in the Abell catalog.
The shared by the Hubble Space Telescope image of a comet galaxy is visible, which is racing with about 3.5 million km / h through the galaxy clusters. The gas of the cluster snatches the galaxy thereby stars, what gives you a tail like a comet.