Prof. Elisa Resconi
The neutrino observatory IceCube is opening a new observational window to the Universe. IceCube, which has been fully constructed in the icecap at the South Pole, is taking data since Spring 2011 in full configuration. The first years of data reveled the existence of extremely high-energy neutrinos at the hundreds of TeV up to the PeV scale, which are of astrophysical origin. In this talk, I will summarize the recent observation and discuss some of the astrophysical scenarios.