The mission of the California Science Center is to stimulate curiosity and inspire science learning in everyone by creating fun, memorable experiences, because we value science as an indispensable tool for understanding our world, accessibility and inclusiveness, and enriching people's lives. The California Science Center is one of the world's leading science centers devoted to science learning. It is among the most attended museums in North America, with over 2.5 million guests each year for the past two years and is the permanent home of the Space Shuttle Endeavour. The California Science Center is currently developing a major expansion, the Samuel Oschin Air and Space Center. The California Science Center holds prestigious accreditations by the American Alliance of Museums and the A