Pierre Auger Observatory, Astronomical research facility in Malargüe Department, Argentina
The Pierre Auger Observatory spans 3,000 square kilometers of land, containing water tanks and fluorescence detectors to study high-energy cosmic rays from space.
The observatory began construction in 2000 following a proposal by physicists Jim Cronin and Alan Watson, reaching full operational status in 2005.
Scientists from more than 500 institutions across 15 countries work together at this facility to study cosmic rays and their effects on Earth.
Located at 1,340 meters elevation, the observatory uses water-filled surface tanks to detect particles and specialized equipment to track ultraviolet light emissions.
The facility records cosmic ray events that occur at a rate of only one particle per square kilometer per century, requiring its large detection surface.
Location: Malargüe Department
Location: San Rafael Department
Inception: 2000
Official opening: 2005
Elevation above the sea: 1,340 m
Website: https://auger.org
GPS coordinates: -35.20667,-69.31583
Latest update: May 11, 2025 01:33
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