More than 500 million people and 28 nations make up the
European Union. It will lose one of its richest, most populous members,
if the United Kingdom votes to leave on 23 June. Ahead of a possible ‘Brexit’, Nature examines five core ways that the EU shapes the course of research.
Alison Abbott, Declan Butler, Elizabeth Gibney, Quirin Schiermeier&
Richard Van Noorden