Library and Archives

Lowell Observatory Archives

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Lowell Observatory Archives

Lowell Observatory Collections

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A Few of Our Favorite Things
Percival Lowell Collection
Carl O. Lampland Digital Archive
V.M. Slipher Digital Archive
3D Artifact Collection
Oral Histories Collection
Arizona Archives Online

Exhibits

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Lowell Observatory's Lunar Legacy Exhibit

Lunar Mapping at Lowell Observatory
Astronaut Training in Flagstaff

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Historic Buildings and Telescopes Exhibit

24-inch Clark Telescope
Slipher Building and Rotunda Museum
Percival Lowell’s Mausoleum
Pluto Discovery Telescope
42-inch Lampland Telescope
18-inch Telescope and Dome

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The Search for Sapphire Skies

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Women in Astronomy Exhibit

Elizabeth Roemer
Wrexie Louise Leonard
Elizabeth Langdon Williams

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The Slipher Brothers Exhibit

Earl Carl Slipher
Vesto Melvin Slipher

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Carl O. Lampland Exhibit

Photos
Biography
Obituary
Pluto
Lowell Observatory and Flagstaff
Astronomy
Domestic and World Events
Diaries

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Arizona Memory Project

Flagstaff It Is—The Founding of Lowell Observatory
Selections from the Lowell Observatory Archives
Year of Pluto

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A Tradition of Cutting-Edge Research

Lowell has been at the forefront of astronomical research for well over a century, with critical discoveries made from the inner solar system to the far reaches of the universe. The first detection of the expanding universe and the discovery of Pluto are but two of the foundation blocks upon which Lowell’s legacy of research has been built.

Explore Our Research History