Shares the story of renowned astronaut and distinguished scientist Kathryn Sullivan, describing how she defied the conventions of her childhood to pursue interests previously limited to boys and how she became the first woman to walk in space. Young Kathy Sullivan loved to explore. She daydreamed about having a pocketful of airplane tickets. She thought maybe she'd be a spy or a diplomat. Most people told her that girls don't do those jobs. But Kathy...