From earthly training to out-of-this-world space exploration, astronauts have worked to uncover the secrets of our universe. Some of the most fascinating stories come from the women who've entered this male-dominated industry and changed it forever. This biographical text looks at the lives of some of the most interesting women who've been to space, including big names such as Sally Ride, Mae Jemison, and Valentina Tereshkova, as well as lesser-known figures such as Eileen Collins and Peggy Whitson. Readers will learn about these women's passionate spirit and their drive break down the social barriers holding them back, and may be inspired to one day seek a career in space. The text is supported by fact boxes and a comprehensive timeline.