Something's stirring in the world of fusion. Even as the Big Science programs involving giant magnetic bottles and giant lasers continue to go nowhere, alternatives are becoming respectable. And funding for them is flowing from sources ranging from the US government to some very tech-savvy billionaires.

Cheap, safe energy from fusion would solve the world's biggest problems. Come along to learn about the challenges, the opportunities, and the latest developments.

Colin Bruce is the author of popular science books translated into over a dozen languages. He has done research for organisations including the European Space Agency and the MoD.