Explore the fascinating intersection of astrophysics and particle physics in this 28-minute lecture on neutrino masses. Delve into the latest research and theories surrounding these elusive particles, examining their role in both cosmic phenomena and subatomic interactions. Gain insights into how scientists are working to determine neutrino masses through various experimental approaches and observational techniques. Discover the implications of neutrino mass for our understanding of the universe's structure and evolution, as well as its potential impact on particle physics models. Join F. Pompa from the Galileo Galilei Institute for an enlightening journey through the multidisciplinary field of neutrino physics, bridging the gap between the infinitesimally small and the cosmic scale.