Solar Neutrino Problem

The Solar Neutrino Problem was a scientific puzzle where experiments detected fewer neutrinos—tiny, nearly massless particles produced by the Sun—than theories predicted. Neutrinos are created when nuclear reactions happen in the Sun’s core, and early detectors consistently found only about a third to half of the expected amount. This discrepancy puzzled scientists until they discovered that neutrinos can change their type, or "oscillate," as they travel to Earth. Recognizing neutrino oscillation resolved the problem, confirming our understanding of solar processes and neutrino behavior.