From the case:
Globular cluster M92 in Hercules: photograph
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Globular cluster M92 in Hercules
Image credit: Achut Reddy/Flynn Haase/NOAO/AURA/NSF
Case Discussion
Globular cluster M92 in Hercules
Image attribution
Author: Achut Reddy/Flynn Haase/NOAO/AURA/NSF
Original file: http://commons.wikimedia.org/wiki/File:Globular_Cluster_M92-2006.JPG
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