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The latest news, exploring the day's events from a global perspective.
Sir Patrick Moore and Chris Lintott explore Mars, the Red Planet. (R)
How the possibility of life on Mars has fuelled man's quest to visit the Red Planet. (R)
Art historian Dr Gus Casely-Hayford explores the current state of British art.

Bret becomes self-conscious, but David Bowie appears in his dreams with helpful advice. (R)
Andy Hamilton, Reginald D Hunter and Dermot Murnaghan see if experts' theories are valid.
When a stable owner is found dead in his barn, Wallander is at a loss for suspects. (R)
Mark Lawson talks to explorer Sir Ranulph Fiennes about his life's work. (R)
Andy Hamilton, Reginald D Hunter and Dermot Murnaghan see if experts' theories are valid.
How the possibility of life on Mars has fuelled man's quest to visit the Red Planet. (R)
Art historian Dr Gus Casely-Hayford explores the current state of British art.