Researchers validate theory that neutrinos shape the universe

The effect that nearly massless, subatomic particles called neutrinos have on the formation of galaxies has long been a cosmological mystery — one that physicists have sought to measure since discovering the particles in 1956.But an international research team has created cosmological simulations that accurately depict the role of neutrinos in the evolution of the universe in a study recently published in The Astrophysical Journal.