Science Night returns to the Menlo Park Main Library on Thursday, September 27 from 6:30-8:30 p.m., offering hands-on fun and exploration from presenters including the Bay Area Discovery Museum, SRI, NorCal Bats, and San Francisco Bay Bird Observatory. The event is free, thanks to the Friends of the Menlo Park Library. The library is located at 800 Alma Street in Menlo Park. For more information, visit menlopark.org/sciencenight, or phone 650-330-2501.