Welcome to the 40th International Cosmic Ray Conference (ICRC2027), taking place July 20–29, 2027, at the Universidad Católica Argentina (UCA) in Buenos Aires, Argentina.

Since 1947, ICRC has been a leading  international meeting in astroparticle physics, bringing together  researchers from around the world to share the latest advances in cosmic rays, high-energy astrophysics, neutrinos, dark matter, multi-messenger astronomy, and related fields.

ICRC2027 will be the first edition held in Argentina and only the fourth in Latin America. With a strong scientific community and home to the Pierre Auger Observatory, Argentina offers an ideal setting for this historic event. 

The Local Organizing Committee looks forward to welcoming the global scientific community to Buenos Aires for ten days of scientific exchange, collaboration, and discovery.