Neutrinos are ghost-like members of the elementary particle family. Even though they abundantly exist around you and more than 200 trillions of them are passing through your body every second, you cannot see or feel them at all.

However, neutrinos travelling the universe tell us plenty of secrets of the center of the Sun, the star’s death “supernova,’’ and even the beginning of the universe happened 13.8 billion years ago. Scientists use huge detectors nearly the size of a football stadium to observe the hard-to-detect particles. The detectors also equip leading-edge technologies on photo-detection, high-speed data processing and big-data computing.

In this seminar, I will present about a brief history of neutrino astronomy, recent rapid progress of neutrino study, and future prospects on the neutrino physics focusing on the world’s largest underground water Cherenkov neutrino detector Super-Kamiokande and its successor Hyper-Kamiokande, which is under planning to be built in Japan. Possible plans of contributions from Yachay, Ecuador to further development on the neutrino detection technology will also be included in the talk.