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Black and white photograph of the 1919 solar eclipse taken by Arthur Eddington on one of the expeditions. The disc of the moon completely obscures the sun so that only the corona is visible, flaring out in all directions.

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  1. Robert McNees (mcnees@mastodon.social)'s status on Monday, 29-May-2023 17:30:40 UTC Robert McNees Robert McNees

    Deflection of starlight by the gravitational field of the sun was observed during a solar eclipse #OTD in 1919. This was an important piece of evidence supporting a central prediction of Einstein's 1915 theory of general relativity.

    Image: Arthur Eddington

    In conversation Monday, 29-May-2023 17:30:40 UTC from mastodon.social permalink
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