Michael Mosley attempts to understand how pleasure and pain work, gamely exposing himself to some painful experiments to show how and why the two are so interlinked. Show more

Documentary series. Workers at British defence contractor QinetiQ reveal a handful of their secretive projects, including robots to defuse roadside bombs. Show more

Professor Iain Stewart and Professor Kathy Sykes take a timely look at global warming, exploring the world's leading climate scientists' vision of the planet's future. Show more

How the differences between identical twins can help science understand what makes us all who we are, including the possible genetic basis of sexuality. Show more

Hollywood-style graphics and real-life archive footage brings home an imagined near-future scenario of the biggest wave ever seen. Show more

Dallas Campbell meets the scientists who have focused on the different aspects of the Drake Equation, which examines seven key elements necessary for ET intelligence to exist. Show more

Documentary following the construction of the Astute nuclear submarine, which has been 14 years in the making and cost over a billion pounds. Show more

When bystanders get caught up in a bungled armed robbery and one of them is kidnapped, what effect do weapons and fear have on their memories? Show more

Having many witnesses to a crime helps the police piece together the facts. But what happens when the only witness is also the victim? Show more

Engineer Jem Stansfield investigates how we have come to understand, and then harness, the immense power of explosions, from ancient China to the nuclear age. Show more