08/11/2026
For this week’s , we celebrate Maria Mitchell, a pioneering astronomer, educator, and advocate who helped open the doors of science to generations of women.
Born in Nantucket in 1818, Maria developed a passion for astronomy at an early age. Her father, an astronomer and teacher, encouraged her interest in mathematics, astronomy, navigation, and scientific observation. By age 12, Maria was helping him calculate the timing of a solar eclipse, and as a young woman, she became skilled at rating ships’ chronometers for Nantucket’s maritime community.
In 1847, Maria made the discovery that would establish her place in astronomical history. While observing the night sky from the roof of the Pacific National Bank in Nantucket, she discovered a new telescopic comet. The discovery earned her an international gold medal from King Frederick VI of Denmark and made her the first American woman to gain international recognition as a professional astronomer.
Maria continued breaking barriers throughout her career. In 1865, she became the first professor of astronomy at Vassar College and the first woman on Vassar’s faculty. At the college, she taught students through hands-on observation and research, encouraging them to engage directly with astronomy rather than simply study it from textbooks.
Her students went on to make their own contributions to science, including astronomers Antonia Maury and Mary Whitney. Maria was deeply committed to expanding opportunities for women in science and advocated for equal pay, education, and women's rights. She was also the first woman elected to the American Academy of Arts and Sciences and the American Association for the Advancement of Science.
