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Discover the amazing true story of Maria Mitchell, America�s first professional female astronomer. Every evening, from the time she was a child, Maria Mitchell stood on her rooftop with her telescope and swept the sky. And then one night she saw something unusual�a comet no one had ever seen before! Miss Mitchell�s extraordinary discovery made her famous the world over and paved the way for her to become America�s first professional female astronomer. Gorgeously illustrated by Diana Sudyka, this moving picture book about a girl from humble beginnings who became a star in the field of astronomy is sure to inspire budding scientists everywhere.