New measurements from an observatory in Argentina suggest that all the most energetic cosmic rays arise from the same types of extragalactic accelerators.
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Recently, the Pierre Auger Collaboration systematically studied the distribution of ultra-high-energy cosmic rays at an intermediate angular scale...
When ESA's groundbreaking Aeolus satellite began experiencing a mysterious signal loss in 2019, help came from the Pierre Auger Observatory.
As part of the AugerPrime upgrade, scintillator detectors (SSD) have been added to the existing water-Cherenkov surface detector stations.
Argentinian artist Juan Sorrentino and Swiss artist Céline Manz were selected for a shared residency split between CERN and the Pierre Auger Observatory.
2025 International Day of Women and Girls in Science
A special greeting from one of the world's most famous astronomers, Jocelyn Bell.
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