California Institute of Technology
Welcome to the Caltech Archives


The Caltech Archives
was formally established in 1968 to serve as the collective memory of the California Institute of Technology. Our mission is to preserve and make accessible the institutional records, personal papers, documents, artifacts and pictorial materials that tell the school's history.

The Archives' unique research collections in the history of science and technology range from the time of Copernicus to today. They are available to the campus community for instructional and research purposes, as well as to qualified non-campus users by appointment.

The Nobel Physicists at Caltech -a Long History
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Images above are from the Caltech Image Archive, an online, searchable database of thousands of images.



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In the News

Now online 4 new oral histories.

Our interviews with physicists Ronald Drever and David Goodstein, engineer Frederick Lindvall, administrator and English lecturer Charles Newton are now online. Read more about our oral history program here.

The George E. Hale collection is online!

George Ellery Hale (1868–1938) founded not only Caltech, but also the world’s largest telescopes. We’ve digitized his papers for the 150th anniversary of his birth.

Now online the Keck Observatory Interviews
A series of 7 oral histories conducted by the Caltech Archives between 1991 and 1992 to document the early history and development of the Keck Observatory at Mauna Kea, Hawaii. More here.

The Mind's Eye: Richard Feynman in Word and Image
A Caltech Archives special exhibition on the occasion of the 100th anniversary of Richard Feynman's birth. Additional information here.

image In The News archive



Talk of the Archives

50 Years of the Owens Valley
130-Foot Radio Telescope

Lifting 130-foot radio telescope dish onto pedestal

This year marks two important anniversaries for the Owens Valley Radio Observatory (OVRO), one of the largest university-operated radio telescope facilities in the world. Managed by the Caltech Astronomy department and located on the East side of the Sierra Nevada, OVRO was inaugurated in 1958 and continues observations to this day.

Its iconic 130-foot radio antenna was dedicated on October 18, 1968, and it soon made its mark in the single-dish spectroscopy of interstellar clouds and in very long baseline interferometry (VLBI), paired with antennas thousands of kilometers away. Here is a selection of photos from our OVRO collections, chronicling the construction of the 130-foot radio telescope. EP - Posted 10-18-2018


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