The Neutrino Mediterranean Observatory Project

Activities leading to the realization of a km 3 Cherenkov neutrino detector, carried out by the NEMO collabo- ration, are described. Long term exploration of a 3500 m deep site in the Mediterranean close to the Sicilian coast has shown that it is optimal for the installation of the detector. A complete feasibility study, that has considered all the components of the detector as well as its deployment, has been carried out demonstrating that technological solutions exist for the realization of the km 3 detector. The realization of a technological demonstrator (the NEMO Phase 1 project) is under way.