Featured Item
Telegram from Mademoiselle Magazine to Public Information Officer, U.S. Naval Observatory, 1959

Request for information regarding Elizabeth Roemer's work
Recently Added Items
Coconino Sun Article about the Discovery of Pluto

Scan of a Flagstaff newspaper, the Coconino Sun, with an article about the discovery of Pluto. The article features images of Clyde Tombaugh and V.M.…
Pluto Not Yet Explored Stamp

Image of the 1991 postage stamp featuring an image of Pluto with the words "Not Yet Discovered." This stamp was part of a series issued by the United…
Pluto Explored Stamp

Postage stamp created by the United States Postal Service (USPS) after the return of the New Horizons mission. The stamp reads "Pluto—Explored!" with…
Featured Collection
Carl O. Lampland

This collection highlights the life and career of Lowell Observatory astronomer Carl Lampland.
Subjects Include:
Lampland’s Obituary
Franklin…
Featured Exhibit
Carl Lampland

Carl Otto Lampland was an astronomer at Lowell Observatory from 1902 to 1951. This exhibit focuses on his research, other...