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MCQIntermediateGalaxies & Extragalactic Astronomy
BAAO — 2019 Astronomy & Astrophysics Challenge
Question 5
In May 1919 the British astronomers Frank Watson Dyson and Arthur Stanley Eddington organised for two teams to photograph a total solar eclipse, one from the West African island of Principe and the other from the Brazilian town of Sobral. Which aspect of a new scientific theory were their observations seen as decisive evidence for?
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Source
Source: British Astronomy and Astrophysics Olympiad (BAAO), Astronomy & Astrophysics Challenge 2019. Question text, answer-choice text, and answer were transcribed from the official BAAO paper and solutions PDFs; the explanation and metadata are original.