Scientific Highlights

For the first time, the Pierre Auger Collaboration introduces the use of muon fluctuations to constrain Lorentz invariance violation.

The Pierre Auger Collaboration has now presented a new measurement of the depth of shower maximum, X_max, using 17 years of fluorescence-detector data and an exposure 2.4 times larger than in the previous analysis.

First proof-of-principle measurement of muons in inclined air showers using radio and water Cherenkov detectors at the Pierre Auger Observatory.

The Fluorescence Detector (FD) of the Pierre Auger Observatory has been detecting elves with a dedicated trigger since 2013, and its 100 ns time resolution enables unprecedented precision in resolving their internal structure.

New measurements suggest that all the most energetic cosmic rays arise from the same types of extragalactic accelerators.

Recently, the Pierre Auger Collaboration systematically studied the distribution of ultra-high-energy cosmic rays at an intermediate angular scale...