Contact: Steve Koppes
skoppes@uchicago.edu
773-702-8366
University of Chicago
Caption: One of the Auger Observatory's surface detectors. The Andes Mountains provide a snow-capped backdrop to the west of the surface detector array.
Credit: Pierre Auger Observatory
Usage Restrictions: This photo may be used by news organizations in reports describing the research of the Auger Cosmic Ray Observatory.
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