NOvA's first neutrino

The first picture of a neutrino that traveled from Illinois to Minnesota shows the NOvA experiment’s advantage in studying neutrino properties. Neutrinos are notoriously hard to see. But detecting these tiny particles is only part of the challenge of studying them; scientists also need to figure out their identities. Neutrinos come in not just one but three types, called flavors: electron, muon and tau. When a neutrino shows up in a particle detector, it usually leaves a calling card in the fo...