The latest news, exploring the day's events from a global perspective.
9/13 Steve Backshall looks at life in the oldest desert in the world, the Namib in Africa. (R)
Documentary about the Antikythera Mechanism, an early computer found in a shipwreck. (R)
3/4 Through the mountains and jungles of Colombia, Dr Jago Cooper goes in search of El Dorado. (R)
3/4 Iain Stewart reveals how the deadliest avalanche killed 18,000 people in three minutes. (R)
A look through 45 years of Horizon archive to see how science came to understand sex. (R)
5/6 Bruce Parry treks into the high Bhutan mountains to live with the isolated Layap people. (R)
Tuesday 17 September 2013