In March, as we recognize International Women’s Day, we invite you to explore the remarkable contributions women have made to our understanding of the universe. Women have shaped our understanding of the universe for centuries, often while facing barriers that kept them out of observatories, universities, and even the history books. This talk explores the stories of the astronomers whose discoveries revealed the scale of the cosmos, uncovered dark matter, and expanded our search for other worlds, and how their legacy continues to influence astronomy today.