Contact: Steve Koppes
University of Chicago
Caption: The Phoenix Cluster, shown here as it appears in microwave (orange), optical (red, green, and blue) and ultraviolet (blue) wavelengths, is forming stars at the highest rate ever observed for the middle of a galaxy cluster. The Phoenix Cluster was discovered by a collaboration of astronomers from the University of Chicago's Kavli Institute for Cosmological Physics and elsewhere.
Credit: South Pole Telescope collaboration
Usage Restrictions: News organizations may use this image to illustrate reports about the discovery of the Phoenix galaxy cluster.
Related news release: Giant galaxy cluster sets record pace for star creation