Marie Curie (1867–1934), born Maria Sklodowska in Poland, was a pioneering physicist and chemist who became the leading researcher on radioactivity. She earned dual degrees in physics and mathematics at the Sorbonne in Paris, and with her husband Pierre Curie, discovered two new elements: polonium and radium.
Curie was the first woman to win a Nobel Prize and remains the only person to have won Nobel Prizes in two different sciences—Physics (1903) and Chemistry (1911). Working in a crude shed for four years, she processed tons of pitchblende residue to isolate radium, demonstrating extraordinary perseverance and scientific dedication.
Curie's work on radioactivity laid the foundations for nuclear physics, cancer radiation therapy, and atomic energy. During World War I, she developed mobile X-ray units for battlefield medicine. Her legacy—'Nothing in life is to be feared, it is only to be understood'—continues to inspire scientists and women in STEM worldwide.