Abell 644, Galaxy Cluster, X-Ray
Abell 644 is in the center of a galaxy cluster that lies about 920 million light years from Earth. At the center of this galaxy is a growing supermassive black hole, called an active galactic nucleus (AGN) by astronomers, which is pulling in large quantities of gas. Release date December 20, 2010.
Size: 3600px × 3600px
Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
Model Released: No
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