The Naval Observatory is a scientific institution in the United States that primarily focuses on astronomy and timekeeping. Established in 1830, it plays a crucial role in providing precise time and astronomical data, which are essential for navigation and various scientific research. Located in Washington, D.C., the observatory is home to the U.S. Naval Observatory Flagstaff Station, which conducts astronomical observations. It also maintains the Master Clock, ensuring accurate timekeeping for the U.S. military and other government agencies, contributing to global positioning systems and other technologies.