Philadelphia celebrates science with over 80 events in 11 days! Come to the Franklin Institute's Science After Hours Prom, visit a free STEM afterschool program at your local library, gaze at the stars with local astronomers, enjoy the Science Carnival with the whole family, and more. With so many options, please chech the calendar of events for the most up-to-date information: http://www.philasciencefestival.org/calendar