Pierre Auger Collaboration

The Pierre Auger Collaboration is an international scientific team studying ultra-high-energy cosmic rays—extremely energetic particles from space that hit Earth's atmosphere. Based in Argentina, they operate the Pierre Auger Observatory, which uses large detectors to observe particle showers created when these rays interact with air molecules. Their goal is to understand the origins and nature of these cosmic rays, which can reveal information about energetic phenomena in the universe. By analyzing data collected from around the world, the collaboration aims to answer fundamental questions about astrophysics and the universe's most powerful events.