Whose research on radioactivity won two Nobel Prizes?

Marie Curie, a Polish-French physicist and chemist, was a trailblazer in the study of radioactivity — a term she coined. Working often alongside her husband Pierre, she discovered two new elements, polonium (named after her native Poland) and radium. In 1903 she shared the Nobel Prize in Physics, becoming the first woman to win a Nobel, and in 1911 she won the Nobel Prize in Chemistry — making her the first person, and still one of very few, to win Nobels in two different sciences. Her work laid the foundation for cancer treatments and nuclear physics. She died in 1934 from illness linked to her long exposure to radiation.