Times Online: One of the most elaborate science experiments ever attempted—the Super-Kamiokande (Super-K) detector in Japan—got underway last month. The experiment involves a vast underground cavern, 50,000 tonnes of ultra-pure water, and thousands of light-sensitive detectors. Super-K’s aim is to capture the neutrino, an elusive particle that has frustrated scientists for decades.The machine, which successfully detected neutrinos for the first time on 22 November, should establish a more precise estimate of their mass as well determining fundamental laws governing neutrino behavior.