Vera Rubin (1928-2016) was a renowned American astronomer whose groundbreaking work revolutionized our understanding of the universe. She is celebrated for her pioneering research on dark matter, which provided evidence of its existence and fundamentally changed the field of astrophysics. Rubin's observations of galaxy rotation curves led to the discovery that the universe is largely composed of unseen dark matter. Throughout her career, she broke barriers in a male-dominated field and inspired a new generation of scientists. Her contributions to astronomy continue to have a lasting impact on our understanding of the cosmos.