Explore the groundbreaking experimental observations of solar neutrinos in this 51-minute lecture by A. Ianni at the Galileo Galilei Institute. Delve into the fascinating journey from the detection of neutrinos produced in the pp-chain reactions to the recent discovery of neutrinos from the CNO cycle. Gain insights into the cutting-edge techniques and technologies used in neutrino detection, and understand the significance of these observations in advancing our knowledge of solar physics and particle physics. Learn about the historical context, challenges faced, and future prospects in the field of solar neutrino research.