How was Photo 51 taken and what significance does it hold in the field of science?

Photo 51 was taken using X-ray crystallography by scientist Rosalind Franklin in 1952. This image provided crucial evidence for the double helix structure of DNA, which was later confirmed by James Watson and Francis Crick. Photo 51 is significant in the field of science as it played a key role in the discovery of the structure of DNA, one of the most important discoveries in Biology.