The rise of right-wing populism is being fuelled by polarisation in society that we must address without resorting to the claim of moral superiority, or protest voters will become the permanent supporters of these new parties, says Wolfgang Merkel, director of the Democracy and Democratisation research department at the WZB Berlin Social Science Center, Germany, and professor of political science at the Humboldt University of Berlin.

Fake news has already fanned the flames of distrust towards media, politics and established institutions around the world. And while new technologies like artificial intelligence (AI) might make things even worse, it can also be used to combat misinformation.

The upcoming European elections will reveal how recent challenges such as immigration, the financial crisis, Brexit and the rise of populist parties will play out in the political arena. But the elections are also providing an opportunity for researchers to understand how to better engage voters and ensure the European Union remains relevant to its citizens.

Online voting is often considered a way to improve voter turnout and security. But according to Dr Steve Kremer of the French Institute for Research in Computer Science and Automation, computer scientists have got a long way to go before they make it a viable alternative to pencils and paper.