Graphics of the IceCube Observatory. Credit: IceCube Collaboration

IceCube is an international collaboration which has constructed and is operating the world's currently largest neutrino telescope of the same name. Its main mission is the discovery and exploration of Galactic and extragalactic sources of high-energy neutrino emission. Furthermore, the detector has proven to be an excellent instrument to search for Dark Matter (WIMPs), for the precise measurement of atmospheric neutrino oscillations, as well as for the investigation of other topical questions in particle and astroparticle physics. In addition, the surface detector IceTop allows to measure the spectrum and composition of cosmic rays in the region of the knee around 1015 eV.

The neutrino detector consists of 86 strings each equipped with 60 optical sensors (photomultipliers) which instrument a volume of 1 km3 of clear glacial ice between 1500 m and 2500 m below the geographical South Pole. Neutrinos are reconstructed indirectly using the Cherenkov light emitted from secondary charged particles like muons and electrons which are generated in neutrino interactions. More information on the detector, its working principle and its physics can be found on the IceCube homepage (

Our group is involved in the analysis of data from the detector, in particular in searches for sources of astrophysical neutrinos.