The Only Person to Win Nobel Prizes in Two Different Sciences
Marie Curie broke barriers in 1903 by sharing the Nobel Prize in Physics for her pioneering work on radioactivity, becoming the first woman laureate. Eight years later, in 1911, she won a second Nobel Prize—this time solo, in Chemistry, for discovering radium and polonium. While five individuals have won multiple Nobels, Curie remains the only person in history honored across two distinct scientific fields, conducting much of her breakthrough research in a poorly ventilated wooden shed.
An Unrivaled Record in Nobel History
In the history of the Nobel Prizes, fewer than ten individuals or organizations have received the honor more than once. Among individual scientists, the roster is extraordinarily small: John Bardeen won twice in physics, Frederick Sanger and Karl Barry Sharpless each won twice in chemistry, and Linus Pauling won once in chemistry and once for peace. Marie Skłodowska Curie remains unique among them. She is the only person to have been awarded Nobel Prizes in two distinct scientific disciplines: Physics in 1903 and Chemistry in 1911.
Curie's recognition across two separate categories was not an administrative fluke or a symbolic encore. It mirrored the profound dual impact of her research. The 1903 prize honored the discovery of a completely unexpected physical phenomenon that defied nineteenth-century understandings of energy and matter. The 1911 prize recognized the arduous chemical labor required to isolate new elements from raw mineral ore, proving that these emissions originated from previously unknown building blocks of the periodic table.
The Search in the Shed
Curie arrived in Paris from Warsaw in 1891 to pursue her education at the University of Paris after years of clandestine study in Poland, where women were barred from higher education. By the late 1890s, having married French physicist Pierre Curie, she sought a subject for her doctoral dissertation. In 1896, French physicist Henri Becquerel had discovered that uranium salts spontaneously emitted mysterious rays capable of exposing photographic plates, even in complete darkness. While Becquerel soon turned his attention to other questions, Curie decided to investigate these rays systematically.
Using a sensitive electrometer developed years earlier by Pierre and his brother Jacques, Curie tested every known chemical substance to determine if others produced similar electrical effects in the surrounding air. She discovered that thorium compounds emitted comparable rays, prompting her to coin the term 'radioactivity' to describe the property. When examining pitchblende and torbernite—complex minerals containing uranium—Curie observed something startling: the raw ores exhibited far greater radioactivity than pure uranium itself. She deduced that the minerals had to contain trace amounts of an unknown substance far more active than anything yet identified.
Pierre abandoned his own research on crystals to join Marie's investigation. Because the Faculty of Sciences at the university did not provide a dedicated laboratory, the couple worked in an abandoned wooden shed at the School of Chemistry and Physics. The space had previously served as a medical school dissecting room. It lacked proper heating and ventilation, suffered from a leaking glass skylight, and offered no protection against noxious chemical fumes. Working with tons of pitchblende residue donated from Austrian silver mines, Curie spent years boiling, filtering, and fractionating heavy solutions, stirring vast boiling cauldrons with heavy iron rods to separate minute traces of active matter.
The 1903 Physics Prize and the Fight for Inclusion
By the close of 1898, the Curies announced the existence of two new radioactive elements detected through their radiation signatures: polonium, named in tribute to Marie's native Poland, and radium. These discoveries challenged the long-held scientific assumption that atoms were indivisible and unchanging, suggesting instead that energy could be spontaneously released from within the atomic structure itself.
In 1903, the Royal Swedish Academy of Sciences moved to recognize the groundbreaking work on radioactivity. The initial nomination submitted by members of the French Academy omitted Marie Curie entirely, proposing only Henri Becquerel and Pierre Curie for the prize. Pierre was alerted to the omission by a sympathetic member of the Swedish committee, the mathematician Magnus Gösta Mittag-Leffler. Pierre immediately wrote back to insist that his wife's foundational role be recognized, stating that a prize for research on radioactive bodies that excluded Marie would be fundamentally unjust.
The committee accepted the argument, and the 1903 Nobel Prize in Physics was divided: half went to Becquerel for his initial discovery of spontaneous radioactivity, and the other half was shared equally between Pierre and Marie Curie for their joint investigations into radiation phenomena. Marie became the first woman to win a Nobel Prize, though illness and exhausting laboratory commitments prevented the couple from traveling to Stockholm to deliver their ceremonial Nobel lecture until 1905.
Tragedy and Scientific Independence
In April 1906, tragedy upended Curie's life when Pierre was struck and killed by a heavy horse-drawn wagon while crossing a rain-slicked street in Paris. Left alone with two young daughters, Curie faced intense personal grief alongside professional uncertainty. The Faculty of Sciences offered her Pierre's vacant academic post, and she accepted, becoming the first female professor in the history of the University of Paris.
In the laboratory, Curie pressed forward independently. While the 1903 Physics prize had acknowledged radioactivity as an observed physical effect, many prominent chemists remained skeptical of radium's true status as a chemical element. Because the Curies had originally confirmed its existence only by spectroscopic lines and radiation output, critics argued that radium might simply be an unstable compound or an artifact of other known materials.
To silence the skepticism, Curie undertook the monumental chemical task of isolating radium in its pure metallic form. Working alongside chemist André-Louis Debierne, she succeeded in preparing pure radium metal and determining its precise atomic weight. She also established an international standard for measuring radioactivity, cementing the element's place on the periodic table through rigorous, classical chemical techniques.
The 1911 Chemistry Prize
In late 1911, the Royal Swedish Academy of Sciences awarded Marie Curie her second Nobel Prize, this time solely in Chemistry. The citation honored her services to the advancement of chemistry through the discovery of radium and polonium, the isolation of radium, and the investigation of the nature and compounds of this remarkable element.
The award coincided with a period of severe personal turmoil in France. Sensationalist Parisian newspapers had launched a xenophobic press campaign against Curie over a personal relationship with the physicist Paul Langevin, Pierre's former student. The public hostility was intense enough that elements within the Swedish Academy privately suggested she remain in France rather than attend the ceremony in Stockholm. Curie rejected the suggestion, insisting that scientific achievements had nothing to do with private life, and traveled to Sweden with her sister and elder daughter to accept the medal in person.
The 1911 prize made Curie the first person ever to win two Nobel Prizes. Her achievement firmly separated the chemical reality of elemental matter from the physical dynamics of atomic decay, showing that the transformation of elements belonged as much to the domain of chemistry as to atomic physics.
A Dangerous Legacy
Curie dedicated her later career to advancing the practical and medical applications of radioactivity. During World War I, she recognized that battlefield surgeons desperately needed radiological imaging to locate shrapnel and bone fractures in wounded soldiers. She designed and equipped mobile radiographic vehicles—popularly dubbed 'petites Curies'—and oversaw the installation of hundreds of radiological units near the front lines, personally driving and operating them in the field.
Throughout decades of research, the biological dangers of ionizing radiation were poorly understood. Curie routinely handled radioactive materials with bare hands, carried test tubes of radium salts in her pockets, and stored glowing vials in her desk drawers. Over time, chronic radiation exposure caused severe health complications, including cataracts and chronic fatigue. In 1934, she died of aplastic anemia, a bone marrow failure directly linked to her prolonged, unshielded exposure to radiation.
Curie's laboratory notebooks, personal effects, and papers remain so radioactive that they are stored in lead-lined boxes at the National Library of France, requiring protective equipment for researchers who wish to consult them. Her dual Nobel Prizes not only marked the birth of modern nuclear science, but also charted a scientific legacy carved out in defiance of social barriers and severe physical hardship.
Key takeaways
•Marie Curie is the only person to win Nobel Prizes in two different scientific fields: Physics in 1903 and Chemistry in 1911.
•Her inclusion in the 1903 Physics Prize was secured only after Pierre Curie intervened against the French Academy's initial all-male nomination.
•The 1911 Chemistry Prize was awarded solely to Marie for successfully isolating pure radium metal and characterizing its chemical properties.
•Curie carried out much of her foundational discovery work under primitive conditions in a drafty, converted shed at the School of Chemistry and Physics in Paris.