Lowell Observatory

United States · Museums & Institutions

Lowell Observatory is a historic astronomical research institution located in Flagstaff, Arizona. Founded in 1894 by Percival Lowell, it is one of the oldest observatories in the United States and was designated a National Historic Landmark in 1965. The observatory is known for its significant contributions to astronomy, including the discovery of Pluto in 1930 and early detection of the expanding universe. The observatory features several historic telescopes, including the Clark Refracting Telescope, which has been in operation since 1896. Lowell Observatory conducts a wide range of astronomical research, including studies of solar irradiance and the brightness of outer planets. It also plays a vital role in public education, offering tours, exhibits, and events that engage visitors and amateur astronomers. The institution serves a diverse audience, including professional astronomers, researchers, educators, and the general public interested in space science.