Seminarium Fizyki Wielkich Energii

Although intensively studied in the last decades, neutrinos still hold a number of mysteries. KM3NeT is a project aiming to uncover these. The KM3NeT experiment consists of two underwater Cherenkov neutrino telescopes, currently under construction at two different locations in the Mediterranean Sea. The KM3NeT detectors collect vast amounts of data already in their intermediate configurations. This includes sufficient number of atmospheric neutrinos to observe neutrino oscillations and perform first astrophysical neutrino searches. This talk describes the KM3NeT detectors and their basic physics programme, including results obtained with data from the early detector configurations.