Hubble: Galaxy Cluster is Stuffed with Globular Clusters

The depths of the famous Abell 1689 galaxy cluster has been studied by the Hubble Space Telescope, revealing the faint light of 10,000 previously undiscovered globular clusters.

September 18, 2013
9:32 AM EDT
The massive Abell 1689 galactic cluster as observed by Hubble -- the image to the right shows the previously hidden globular clusters contained within the galactic cluster. Click image to see full-resolution version. | NASA, ESA, J. Blakeslee (NRC Herzberg Astrophysics Program, Dominion Astrophysical Observatory), and K. Alamo-Martinez (National Autonomous University of Mexico)