Neutrinos are tiny, nearly massless particles that rarely interact with matter. They are produced in various processes, such as nuclear reactions in the sun or during supernova explosions. Because they can pass through most materials without any interaction, detecting them requires sensitive equipment and large detectors, often located underground to shield them from other particles. When neutrinos do interact, they can collide with other particles, such as electrons or protons. These interactions can produce secondary particles, which scientists can then detect. Understanding neutrino interactions helps researchers learn more about fundamental physics and the universe, including the behavior of dark matter and the standard model of particle physics.