Magician Benjamin Corey defies gravity with interactive comedy and magic as The Chromatics delight with unique high-energy vocals about science, technology and life. The Park is home to the Gaithersburg Latitude Observatory, which conducted celestial measurements to aid in navigation from the late 1800’s until 1982. Bring your own telescope. Local astronomers, inlcuding Hands-on-Optics, will be on hand with telescopes and expertise.