Sterile neutrino sleuths

Meet the detectors of Fermilab's Short-Baseline Neutrino Program, hunting for signs of a possible fourth type of neutrino. Neutrinos are not a sociable bunch. Every second, trillions upon trillions of the tiny particles shoot down to Earth from space, but the vast majority don't stop in to pay a visit--they continue on their journey, almost completely unaffected by any matter they come across. Their reluctance to hang around is what makes it such a challenge to study them. But the Short-Baseline...