These new results could prove to be the key to finding the Holy Grail of physics, the unified theory. It also may help solve the mystery of why the universe isn't as heavy as science says it should be.
Neutrinos are one of the basic building blocks of atoms and, in turn, everything else.
They are also particularly elusive. Neutrinos have no charge and are so small that they pass right through matter, making them very tricky to track. The scientists, working on a project known as the Super-Kamiokande Experiment, believe they have found evidence that proves that part of the theory needs to be reconsidered. They can't measure a neutrino's mass, but have evidence that strongly suggests it has some. The concept was first proposed by Albert Einstein, but, so far, the search for a unified theory has failed because of uncertainties - such as the mass of neutrinos.