- Photo 51, X-ray diffraction image which confirmed the double helical structure of DNA.
- Rosalind Franklin, the supervisor of the crystallography.
- 1952, the year.
- King’s College, the location of the laboratory in London, UK.
The results suggest a helical structure (which must be very closely packed) containing probably 2, 3 or 4 coaxial nucleic acid chains per helical unit and having the phosphate groups near the outside.
– Rosalind Franklin, Official Report, Feb. 1952