Nobel laureate and molecular biology pioneer Aaron Klug dies

Aaron Klug, who received the chemistry Nobel prize in 1982, has died aged 92. Klug won the prize for developing crystallographic electron microscopy – a technique that can produce detailed three-dimensional images of molecules by combining several 2D images of crystals taken from different angles – as well as for working out the structure of RNA- and DNA-protein complexes such as chromatin, the tightly packaged genetic material found in cell nuclei.