CAP Lecture - What we don’t know about neutrinos!

One might think that after studying a category of particles for almost a century, physicists would know a thing or two about neutrinos. After all, neutrino research has been the recipient of FOUR Nobel Prizes! One might then be shocked to learn that while we have learned much over that time, what we still don't know about neutrinos could fill, well, at least a lecture. I will review the history of neutrino discoveries, what makes them so darn difficult to study, and what we are still trying to learn about them. I will focus what makes neutrinos different than all the other particles we know of, reviewing recent results and the knowledge gains that will be made by upcoming experiments.