Explore the frontiers of particle physics in this 52-minute lecture from the Neutrinos and New Physics Teachers' Conference at the Kavli Institute for Theoretical Physics. Delve into the exciting realm of physics beyond the Standard Model, focusing on the groundbreaking discoveries in neutrino physics. Learn about the Nobel Prize-winning findings of neutrino masses and flavor mixing, and understand their significance in the search for new physics. Examine the pressing questions facing the field as it enters the precision era, and discover how neutrinos play a crucial role in particle physics, nuclear physics, and astrophysics. Gain insights from world-leading expert Matheus Hostert of the Perimeter Institute as he discusses potential breakthroughs and future developments in this cutting-edge area of research.