Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Cryo-electron microscopy is currently one of the most productive structural techniques, especially for large protein complexes such as photosystems. This success is built on a very long history of technological advances.
In June 2019, the Food and Agriculture Organization of the United Nations will elect a new Director General, an individual who will be central to global development for the next decade.
Two recent Escherichia coli outbreaks, a United States government shutdown and the imminent departure of the United Kingdom from the European Union bring into focus the fragility of global food supply systems.