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Tag: Henrietta Leavitt

Published on 11 July 2026

Women Pioneers in Science: Henrietta Leavitt

She never once looked through a telescope. Yet Henrietta Leavitt figured out how to measure the size of the universe. In the early 1900s, Henriette Leavitt sat for hours in a small room at Harvard, studying photographs of the night sky, one of many women hired to do the observatory’s

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