tremendous: we have learned that neutrinos have mass and change<br>
flavor. This discovery won the 2015 Nobel Prize. I will pick out one<br>
of the threads of the story-- the measurement of flavor oscillation in<br>
neutrinos produced by cosmic ray showers in the atmosphere, and<br>
further measurements by long-baseline beam experiments. In this talk,<br>
I will present the latest results from the Super-Kamiokande and T2K<br>
(Tokai to Kamioka) long-baseline experiments, and will discuss how the<br>
next generation of high-intensity beam experiments will address some<br>
of the remaining puzzles.