The famous scientist recognized for her groundbreaking research in radioactivity is Marie Curie. Born in Poland and later working in France, Curie's pioneering studies on radioactive elements, including polonium and radium, revolutionized the field of nuclear physics. She was the first woman to receive a Nobel Prize and remains the only person honored with Nobel Prizes in two different scientific fields: Physics and Chemistry. Curie’s remarkable contributions not only advanced scientific understanding but also opened doors for women in science, leaving a profound legacy.