Photos and letters show how James Watson and Francis Crick raced to uncover the double helix structure of DNA.

When molecular biologist Francis Crick tripped on the psychedelic drug LSD in 1953, his mind famously pulled together all of his previous research on human DNA to conceive of the image of a double ...

It is the famous lightbulb-going-off story every school kid learns: How James Watson and Francis Crick discovered the structure of DNA, cementing their place in scientific history. But as William ...

Diagrams: Short section of DNA, 1951 -- Chemical structures of the DNA bases, 1951 -- Covalent bonds of the sugar-phosphate backbone -- Schematic view of a nucleotide -- Mg** ions binding ...

Reconstructing accurately how the parts of a complex molecular are held together knowing only how the molecule distorts and breaks up. This was the challenge taken on by a research team led by SISSA’s ...