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Contact: Steve Koppes
University of Chicago

Cosmic-ray Detector

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.

Related news release: Mysterious cosmic rays linked to galactic powerhouses

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