The latest national and international news, exploring the day's events from a global perspective.
James May takes a rare and privileged flight 70,000 feet above Earth in a U2 spy plane to a place known in the Air Force as the 'space equivalent zone' or the 'edge of space'. Show more
In the final part of Dennis Potter's classic drama serial with music, as fiction and fact fight for the same space, the plots and narratives head to their conclusions. Show more
Holistic detective Dirk Gently discovers the connection between a client who believes the Pentagon are trying to kill him and another whose horoscopes appear to be coming true. Show more
Series exploring topical scientific issues examines the story of infinity - older than time, bigger than the universe and stranger than fiction. 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