A picture of Cecilia Payne with the following text: Never heard of Cecilia Payne? Now you have Cecilia Payne-Gaposchkin's 1925 thesis that the sun was composed mostly of hydrogen and helium was rejected by a professor who called it "impossible". Years later, the man who rejected it realized she was in fact right, but he was credited with the discovery for decades. A prominent astronomer called her discovery "the most brilliant PhD thesis ever written in astronomy".
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