From a conference in Italy comes news that scientists love to hear. Different research groups independently detected neutrino mass.
Oscillation means mass.
Neutrinos can oscillate only if they have mass. The case for neutrino mass is all the more compelling because two radically different types of detectors came up with the same result. But they do establish the lower limit of that mass-at least a few billionths the mass of an electron, and they reveal the differences in mass among the three neutrino varieties. Solar physicists can now understand why their neutrino detectors have found only a third of the neutrinos produced by the sun's nuclear furnace. Their detectors are tuned to pick up just one variety of Neutrino.