The Frosty Drew Nature Center & Observatory’s mission is to deliver environmental education to people of all ages, with a primary focus on marine aquatic habitats and the night sky. The Observatory, with its 16-inch telescope and John G. Drew Sky Theater, is open to the public free of charge on Friday nights throughout the year, and on Friday and Saturday nights during the summer. It serves as a gateway to Charlestown’s extraordinary dark sky – the darkest between Boston and New York.