Crucial measurements were made at the Super-Kamiokande neutrino detector in Japan The discovery that neutrinos switch between different “flavours” has won the 2015 Nobel Prize in physics. Neutrinos are ubiquitous subatomic particles with almost no mass and which rarely interact with anything else, making them very difficult to study. Takaaki Kajita and Arthur McDonald led two teams which made key observations of the particles inside big underground instruments in Japan […]