Lowell Observatory Archives

Lowell Observatory is a private, non-profit, astronomical research institution in Flagstaff, founded in 1894 by Percival Lowell. Famous discoveries include the first evidence of the expanding universe, the discovery of Pluto and the discovery of the rings of Uranus. Today, our astronomers study stars, planets, comets, asteroids and galaxies. Daytime guided tours and nighttime sky viewing are offered throughout the year, and in 2012 Lowell celebrated the completion of its 4.3-meter Discovery Channel Telescope near Happy Jack, AZ.

The Lowell Observatory Archives houses manuscripts, research notes, correspondence, photographs, glass plates, logbooks, blueprints, oral histories, scrapbooks, newspaper clippings, audio, video, publications and artifacts that document the institution's history.

Watch a video tour from the Lowell Observatory Library and Archives.