Super-Kamiokande measures the properties of neutrinos for understanding their role within ordinary matter and the origin of matter. It also explores the evolution of the universe by observing neutrinos coming from distant stars. Furthermore, it searches for decays of the proton, which has never been observed but is predicted to occur very rarely according to the Unification Theory.
EGADS (Evaluating Gadolinium's Action on Detector Systems) is a test facility for dumping chemical compound of gadolinium into the Super-Kamiokande to enhance the sensitivity for detecting (anti-)neutrinos from distant supernovae, a project known as GADZOOKS! (Gadolinium Antineutrino Detector Zealously Outperforming Old Kamiokande, Super!).