Marie Curie was a chemist who studied radiation.
Marie Skłodowska Curie ( [ ˈkjʊri , _ kjʊˈriː ] [ kyʁi ] ; [ kʲiˈri ] ; 7 November 18674 July 1934 ) , born Maria Salomea Skłodowska ( [ ˈmarja salɔˈmɛa skwɔˈdɔfska ] ) , was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity . Curie died in 1934 , aged 66 , at a sanatorium in Sancellemoz ( Haute-Savoie ) , France , due to aplastic anemia brought on by exposure to radiation while carrying test tubes of radium in her pockets during research , and in the course of her work at field hospitals during World War I.