On 25 April 1953, Nature published a short paper by James Watson and Francis Crick that set out a structural model for DNA: two strands coiled around one another in a double helix, joined by paired chemical bases at regular intervals. The elegance of the model lay in what it implied—how genetic information could be stored and, crucially, copied.

The proposal did not emerge in isolation. It drew on experimental findings produced by other researchers, including work at King’s College London by Rosalind Franklin and Maurice Wilkins. Franklin’s X-ray diffraction data—often associated with the image known as “Photo 51”—provided important evidence consistent with a helical structure.

The same issue of Nature also included companion papers from Wilkins’ group and from Franklin’s team, reinforcing the empirical foundation for the structural model and accelerating scientific consensus around DNA as the molecular carrier of hereditary information.

The publication is widely regarded as a defining milestone in modern biology, helping to establish the foundations of molecular genetics and enabling subsequent advances across fields such as biotechnology and genomics. In 1962, Watson, Crick, and Wilkins received the Nobel Prize in Physiology or Medicine for this work. Franklin, who died in 1958, was not eligible for consideration, though her contribution is now recognised as essential.

Sources: Nature (nature.com) • Genome.gov (genome.gov) • Nobel Prize (nobelprize.org)