![](http://www.alamy.com/thumbs/6/B63619CF-D46E-437D-944E-A41A3D57684A/D5DYE7.jpg)
Abell 1689: A Galaxy Cluster Makes Its Mark (A galaxy cluster at a distance of about billion light years from Earth.)
Size: 1387px × 1441px
Photo credit: © NG Images / Alamy / Afripics
License: Licensed
Model Released: No
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