Marie Curie

Biography

Born Maria Sklodowska on 7 November 1867 in Warsaw, then under Russian rule, Marie Curie grew up in an intellectual but modest family marked by Polish cultural resistance. Barred from university (women were excluded in Russian-controlled Poland), she attended the Flying University, a clandestine network of higher education. An arrangement with her sister Bronya allowed her to fund Bronya's studies in Paris in exchange for future reciprocity. In 1891, at 24, she finally arrived in Paris and enrolled at the Sorbonne, where she obtained a degree in physics (1893) and then in mathematics (1894), finishing first in her physics class.

In 1894 she met Pierre Curie, an established physicist with whom she immediately shared a passion for science. They married in 1895. Together they undertook research into radioactivity, a term Marie herself coined. Building on Becquerel's work on uranium, Marie discovered that thorium was also radioactive, then, by analysing pitchblende, a uranium-bearing ore, identified two new chemical elements: polonium (named in honour of her homeland) and radium, both announced in 1898. These discoveries transformed modern physics and chemistry.

In 1903, Marie and Pierre Curie shared the Nobel Prize in Physics with Henri Becquerel. Marie became the first woman to receive a Nobel Prize. The accidental death of Pierre in 1906 (struck by a horse-drawn carriage) left her devastated but resolute: she succeeded him in the chair of physics at the Sorbonne, becoming the institution's first female professor. In 1911, she received a second Nobel Prize, this time in Chemistry, for the isolation of pure radium. She remains to this day the only person to have received two Nobel Prizes in two different scientific disciplines.

During the First World War, Marie Curie channelled her energy into the service of the wounded. She developed mobile radiological units, nicknamed "petites Curie" (little Curies), which allowed X-rays to be taken close to the front lines, saving countless soldiers from unnecessary amputations. She also trained nurses and aides in the use of X-ray equipment. Her practical and humanitarian commitment during the conflict earned her immense respect beyond the scientific community.

Marie Curie died on 4 July 1934 in Passy, Haute-Savoie, of aplastic anaemia caused by prolonged exposure to radiation, at a time when the biological effects of radioactivity were not yet understood. In 1995, her ashes were transferred to the Panthéon in Paris alongside those of Pierre: she became the first woman to be interred there for her own merits. Her journey, from the streets of Warsaw to the laboratories of Paris, remains a universal symbol of perseverance, scientific rigour and courage in the face of social and gender barriers.