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We celebrate Sally Ride each year on her birthday, May 26, because she was the first American woman in space — a pretty big accomplishment considering the odds stacked against her. She first went into space on the Challenger space shuttle in 1983, and did another trip the following year. After setting foot back on solid ground, Ride ultimately became a physics professor and director of the California Space Institute at UCSD. During her life, she also founded a nonprofit focused on encouraging more girls to get involved in STEM subjects. Learn more about this remarkable astronaut, educator, and inspirer of girls everywhere in this study set and join us in celebrating Sally Ride Day tomorrow!

Image via the U.S. National Archives and Records Administration