Pierre Auger Observatory

The Pierre Auger Observatory is a cosmic-ray research facility in Malargüe that spreads across a large plateau and is equipped with many detectors. The site uses water tanks and specialized sensors to capture tiny particles that arrive from space and hit Earth.

The observatory arose from an idea by two American physicists and began construction in 2000. After 5 years of intensive development, the facility reached full operational status.

The facility brings together researchers from around the world who collaborate to understand mysterious energy sources from space. This international cooperation makes the place a symbol of shared scientific effort across borders.

The area sits at high elevation where the air is thin and conditions for measurements are ideal. Visitors should expect open landscape and simple infrastructure, as the facility is located in a remote region.

The events the observatory measures are so rare that the enormous size of the facility is needed just to gather enough data. The water tanks act like a cosmic early warning system for these extraordinarily uncommon impacts.

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: December 7, 2025 20:44