The Earth continuously receives showers of high-energy charged particles, from a wide range of cosmic accelerators corresponding to violent phenomena in the Universe.

Find out what the observatories have learned about and thanks to cosmic rays since their discovery, a century ago.

Cosmic Rays

The Pierre Auger Observatory

Other Messengers

Chapters translated from Passeport pour les deux infinis, IN2P3/Dunod: https://pass2i.ijclab.in2p3.fr/ (French). Updated with ICHEP2024 conference results, for IPPOG.

To learn more about the project and further reading, go to the page: Passport to the Infinite: the Journey goes on