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Probing the transforming world of neutrinos

Every second, trillions of neutrinos travel through your body unnoticed. Neutrinos are among the most abundant particles in the universe, but they are difficult to study because they very rarely interact with matter. To find traces of these elusive particles, researchers have built a 14,000-ton detector the size of two basketball courts called NuMI Off-Axis Electron Neutrino Appearance, or NOvA.