Most significant positive evidence
The strongest evidence concerns discoveries that transformed physics and medicine, the creation of mobile X-ray services during the First World War and persistent advancement of women in science.
Person
The assessment covers Curie's discoveries in radioactivity, medical applications, wartime radiology, scientific openness and the occupational risks surrounding early radiation research.
This is a contemporary assessment current to 26 June 2026. It must be revised as later conduct and evidence become available.
Current published result
Curie's record is strongly positive. Her scientific achievements and practical medical service generated immense and lasting benefit, while safety failures are substantially mitigated by the period's limited knowledge of radiation risk.
This assessment presents six separate ethical dimensions rather than one overall moral score. Each result must be read with its evidence, plausible range, confidence, disputes, exclusions, severe-harm findings and sources.
The strongest evidence concerns discoveries that transformed physics and medicine, the creation of mobile X-ray services during the First World War and persistent advancement of women in science.
The score is moderated by the severe hazards attached to early radiation work and by the limited safety protections available to laboratory and medical personnel, although the dangers were incompletely understood at the time.
Read the full Marie Curie ethical assessment, evidence and sources
The overall figure is the equal-weight average of the applicable dimensions. It does not replace the separate scores, evidence or uncertainty.
1891–1934 · Published assessment · reviewed June 26, 2026
Result: Six-dimensional ethical profile