"For the first time, physicists have confirmed that certain subatomic particles have mass," writes the L.A. Times. The mass could account for the mysterious existence of dark matter. According to the article, "Astrophysicists have inferred the existence of dark matter from their observations that the total amount of visible matter is insufficient to account for gravitational effects. It is estimated that dark matter accounts for 80% of the mass of the universe and visible matter only 20%. The new finding is important because in the theories now used to explain the behavior of fundamental particles, called the Standard Model, neutrinos have no mass."