In the early 1900s, Harvard's 'computers' were women paid to catalog stars by hand. One of them, Cecilia Payne, made a discovery so shocking that the world's leading astronomers told her she was wrong—the sun was made of hydrogen, not iron and rock like Earth. Her rejected thesis would later be called the most brilliant PhD ever written in astronomy. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com

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