The Solar Neutrino Problem

The Solar Neutrino Problem refers to a significant discrepancy observed between the number of neutrinos detected from the Sun and the expected amount based on solar models. Neutrinos are tiny, nearly massless particles produced in nuclear reactions in the Sun's core. Detectors on Earth found only a third of the anticipated neutrinos, leading scientists to question their understanding of solar processes or the properties of neutrinos themselves. This mystery was eventually resolved by discovering that neutrinos can change types, or "flavors," during their journey to Earth, reducing the number detected compared to predictions.