Marie CURIE was a renowned scientist who made significant contributions to the field of physics and chemistry. She was the first woman to win a Nobel Prize, and the only person to win two Nobel Prizes in different sciences. She is best known for her pioneering research on radioactivity, which led to the discovery of two new elements, radium and polonium. Her work also helped to develop the use of X-rays in medical treatments. She was an influential figure in the development of modern science and her legacy continues to this day.