The Women Who Transformed Astronomy

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First hired by Harvard College Observatory to carry out astronomical calculations, Annie Jump Cannon (1863-1941) eventually became one of the foremost American astronomers.

During the mid-19th century, Harvard hired women to interpret the observations their male counterparts made via telescope each night. In The Glass Universe: How the Ladies of the Harvard Observatory Took the Measure of the StarsDava Sobel looks at how their work transformed the practice of astronomy, as the women collected and studied over half a million stars captured on glass photographic plates.