Lowell Observatory: Science, Discovery, and Dark Skies
From the discovery of Pluto to the first evidence of the expanding universe, our astronomers have made landmark contributions to science while inspiring generations to look up. Today, we continue our dual mission of cutting-edge astronomical research, using world-class facilities like the Lowell Discovery Telescope, and science outreach, welcoming more than 100,000 visitors annually to experience Flagstaff’s dark skies through telescopes, guided programs, and interactive exhibits.
Our Mars Hill campus features state-of-the-art visitor spaces, including the Open Deck Observatory featuring six public viewing telescopes, and the Astronomy Discovery Center, home to an open-air planetarium that showcases the real night sky. Lowell has been a pioneer in dark sky protection since 1958, helping make Flagstaff the world’s first International Dark Sky City. Research today spans our solar system and beyond, including planets, comets, and asteroids, distant exoplanets, galaxies, and dark matter. Research is supported by NASA, the National Science Foundation, and generous donors. Whether you join us on Mars Hill or follow our work from afar, Lowell Observatory remains “America’s Observatory,” connecting people everywhere to the wonder of the cosmos.
Our Mission
At Lowell Observatory, we are driven to uncover the mysteries of the cosmos and share them with the world. From pioneering research in exoplanets and planetary defense to immersive telescope viewings, we transform complex science into moments of wonder that inspire the next generation of explorers.
Historic Milestones
Founded in 1894 by Percival Lowell, the Observatory has made history with discoveries like Pluto in 1930 and the first evidence of the expanding universe. As a National Historic Landmark and renowned Pluto discovery site, Lowell continues to be a place where groundbreaking research and public curiosity intersect.
Dark Sky Leadership
Since 1958, Lowell Observatory has been a leader in dark sky preservation, advocating for lighting ordinances that protect the clarity of Flagstaff’s night skies. This commitment helped make Flagstaff the world’s first International Dark Sky City, ensuring that future generations can enjoy the pristine view of the cosmos.
Global Research Impact
Our astronomers work on international projects, from NASA missions to studies using the Hubble Space Telescope. We publish in leading scientific journals, contribute to planetary science and exoplanet research, and collaborate with institutions worldwide to expand humanity’s knowledge of the universe.
Land Acknowledgement
Lowell Observatory sits at the base of mountains sacred to tribes throughout the region. We honor their past, present, and future generations, who have lived here for millennia and will forever call this place home.
