Challenging nationalism through science in 1919

In 1919 scientists from rival nations collaborated to test predictions made by Albert Einstein’s general theory of relativity during a solar eclipse expedition.

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Fig. 1: Letter from Arthur Eddington to the Lisbon Astronomical Observatory.

University of Lisbon, National Museum of Natural History and Science

Fig. 2: Portrait of Arthur Eddington and Hendrik Lorentz (front row) with Albert Einstein, Paul Ehrenfest and Willem de Sitter (back row).

AIP Emilio Segrè Visual Archives, Gift of Willem de Sitter

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  • 05 November 2019

    An amendment to this paper has been published and can be accessed via a link at the top of the paper.


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The National Optical Astronomy Observatory is operated by the Association of Universities for Research in Astronomy Inc. under a cooperative agreement with the National Science Foundation.

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Correspondence to Stephen Pompea or Pedro Russo.

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Pompea, S., Russo, P. Challenging nationalism through science in 1919. Nat Astron 3, 876–877 (2019).

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