Chemistry
Rosalind Franklin
A clearer image helped reveal a hidden structure.
The problem
A question worth answering.
Researchers were trying to understand the molecular structure of DNA.
What they did
Franklin and her student Raymond Gosling produced exceptionally clear X-ray diffraction evidence, including Photo 51.
What changed
Their work contributed to the discovery of the double helix. Franklin also conducted important research on coal and viruses.
Where you meet their legacy
In the knowledge, systems and people who carry the work forward today.
Evidence and further reading
This story does not assign sole credit for a collective achievement.