Marie Curie was a trailblazing physicist and chemist who conducted groundbreaking research on radioactivity. She was the first woman to win a Nobel Prize, and the only person to win Nobel Prizes in two different scientific fields — Physics and Chemistry. Her discoveries of polonium and radium revolutionized medical and industrial science, paving the way for radiation therapy and nuclear research. Her persistence and curiosity reshaped how the world understood atoms and their potential.