The 12th edition of the Bay Area Science Festival, Northern California’s largest celebration of science, is October 25, 2025 at Koret Quad on UCSF’s Mission Bay Campus! What to expect? We’re bringing together STEM role models, families, youth and adults to experience over 100 jaw-dropping demonstrations, hands-on experiments, astounding games, behind the scenes lab tours, film screenings and science talks that will inspire future scientists and show how science shapes the way we live. Join us to discover science together — all on one unforgettable October day.