What is Marie Curie renowned for discovering?

Marie Curie discovered radioactivity, identifying elements like radium and polonium, revolutionizing physics and chemistry. Her work laid the foundation for nuclear science and medical treatments like radiotherapy. Studying this highlights the role of pioneering discoveries, the challenges of early radiation research, and its impact on scientific advancements. For Pakistan, this provides lessons on investing in scientific research, particularly in nuclear and medical fields through institutions like PAEC, to foster innovation and elevate global scientific contributions.