Ernie Rea in conversation with guests about Agnosticism and doubt.
Michael Blastland explores the quirky ways in which we think, behave and make decisions.
Caoilinn Hughes discovers the power of embracing uncertainty.
Roger Harribin asks how climate policy decisions can be taken amid scientific uncertainty.
Mark Vernon asks whether we have lost our ability to doubt well.
Ernie Rea and guests debate the role of doubt in religion - is it positive or negative?
Anne McElvoy and Gabrielle Rifkind are joined by Charles Moore and Hugh Muir.
Melvyn Bragg and his guests discuss the history of philosophical scepticism.
Mary J Blige talks about self-doubt, soul music and making an album inspired by London.
Laura Kuenssberg explores the foundations of the scandals that shook faith in elites.
Brian Cox and Robin Ince return for a new series of witty, irreverent science chat.