Research
Research
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Niels Bohr Library & Archives
NBLA is a repository and hub for information in the history of physics, astronomy, geophysics, and allied fields.
Library Collections
Our holdings of over 30,000 published materials include textbooks, monographs, rare books and more dating from the 1500s to the present day.
Archival Collections
As the official home for the records of AIP and its Member Societies, our archival collections include approximately 4,000 linear feet of materials, plus nearly 2,000 oral histories. The NBLA is also home to the Emilio Segrè Visual Archives, which contains over 30,000 photographs and other visual materials.
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Visit the Library
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Use the Collections
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Donate Materials
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Contact a Librarian
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Emilio Segrè Visual Archives
Search our collection of more than 30,000 historical digital images, photographs, slides, lithographs, engravings, drawings and other visual materials.
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Oral Histories
Search our collection of over 1,500 oral history interviews from the 1960’s to the present day with accomplished scientists in industry and academia.
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Digital Repository
Our digital repository houses some of our most significant collections, which have been digitized thanks to researcher support and grant-funded projects.
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Ex Libris Universum
From the Library of the Universe. Delve into the amazing collections with this blog from the Niels Bohr Library & Archives.
Search Our Catalog
Search the Niels Bohr Library & Archives holdings and the International Catalog of Sources (ICOS) of over 10,000 collections from repositories worldwide.

Research Tools

Online Catalog

Search our physical collection holdings, including books, journals, archival collections, and oral history interviews, along with the International Catalog of Sources (ICOS) of archival repositories world wide.

Research Guides

Research guides provide starting points for exploring our collections and navigating our online resources. Browse topical research guides and instructions for how to navigate our catalog and online repository.

Archival Finding Aids

A finding aid is a tool created by records professionals to give information about the contents of archival collections. Finding aids provide detailed inventories to help researchers locate relevant materials. Browse the finding aids for AIP and ICOS collections.

Member Society Portals

Explore the AIP Member Society Archives Portals to discover the rich history and heritage of the physical sciences and the varied disciplines represented by the AIP Member Societies.
Image Credits

“Robert Oppenheimer Speaking at the Niels Bohr Library Dedication in New York”. Physics Today Collection. Niels Bohr Library & Archives. Niels Bohr Library Dedication D1.| Niels Bohr Library & Archives Library stacks. Photo by AIP. |Niels Bohr Library & Archives Vault. Photo by AIP. | “Emilio Segrè Taking a Photograph”. Segrè Collection. Niels Bohr Library & Archives. Segrè Emilio B38 |OHI photo | “Portrait of Joan Warnow-Blewett”. Physics Today Collection. Niels Bohr Library & Archives. Blewett John G1 | “Unidentified, Arthur Roberts and George Tressel at a Recording Session for Music”. George Tressel Collection. Niels Bohr Library & Archives. Roberts Arthur C3 | Ptolemy’s Almagest,1528. Photo by AIP.