High Quality Content by WIKIPEDIA articles! Super-Kamiokande (full name: Super-Kamioka Nucleon Decay Experiments, abbreviated to Super-K) is a neutrino observatory which is under Mount Kamioka near the city of Hida, Gifu Prefecture, Japan. The observatory was designed to search for proton decay, study solar and atmospheric neutrinos, and keep watch for supernovas in the Milky Way Galaxy.