The latest national and international news, exploring the day's events from a global perspective.

Michael Portillo discovers how the railway has changed down the years. This episode finds him in Kent, rolling along the scenic south coast to Hastings. Show more

Famed for their ability to inflict Armageddon from outer space, asteroids are now revealing how they are responsible for both life and death on our planet. Show more

Entomologist George McGavin and ant expert Adam Hart capture all aspects of life in an ant colony using time-lapse cameras, microscopes, microphones and radio tracking technology. Show more

Documentary which journeys into the life and work of Scottish artist William Turnbull, widely recognised as one of the pioneers of modernism in Britain. Show more

Charting the birth of the heritage movement and the first arguments of radical thought which led to legislation to safeguard ancient structures. Show more

Griff Rhys Jones continues his quest to find traditional art in remote places by travelling to West Africa. He considers whether there is such a thing as pure African art. Show more

Benedict Cumberbatch explores the life and work of the playwright Terence Rattigan. Rattigan mastered the 'well crafted play' of upper class manners and repressed sexuality. Show more

Entomologist George McGavin and ant expert Adam Hart capture all aspects of life in an ant colony using time-lapse cameras, microscopes, microphones and radio tracking technology. Show more