More than 200 years ago, a scientist named Alexander von Humboldt embarked on a perilous five-year journey through the Venezuelan jungles and Andean Mountains of South America. At the time, it was believed that the world was less than 6,000 years old. Humboldt's groundbreaking observations and theories would not only inspire Charles Darwin, but change our understanding of nature--and the role human's plays in it--forever. Follow historian and best-selling author Andrea Wulf as she recounts his footsteps and discoveries.

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History of the prison and the crimes of its most notorious inmates, as well as uncovering scandals hidden within its walls. The facility was built in 1852 and initially housed both male and female prisoners. However, in 1902 it became a female-only jail and had a new gallows installed, with its first victims being serial baby killers Amelia Sach and Annie Walters. Suffragettes imprisoned there were treated as common criminals and when some of them began hunger strikes, the regime's response was brutal. The programme ends by taking a look at the prison during the Second World War and up to 1948.

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Gorillas: Rumble In The Jungle
Gorillas live in complex social groups led by a dominant male 'silverback'. He is intelligent and powerful, fiercely leading his troop through the dangers of the jungle. Gorillas are like us in so many ways, but their existence is under threat.

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How can we cope with this tricky virus now rampant worldwide? The key to this battle lies in our immune system. Through the high-tech "eyes" of next-generation microscopes, we will see how our immune defense corps combat against pathogens and what mechanism is expected to help develop treatment.

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Explores the personality of the man behind the crimes - on the surface a mild-mannered civil servant who admitted to murdering up to 15 young men over a four-year period in the late 1980s and early 1980s, disposing of their bodies in the garden and down the drain. The film includes footage of an interview Nilsen gave to ITV at Albany Prison in 1992, contributions from victims' families and insights from criminologist David Wilson, who corresponded with Nilsen over several decades. Narrated by David Tennant.

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Nearly twice the size of the United States, Russia is the biggest country on Earth. From the subtropics to the arctic and the Atlantic Ocean to the Pacific; giant lakes, active volcanoes and endless forests.

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Series charting a year on Upper and Lower Lough Erne in the west of Northern Ireland.

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The Mediterranean. Because people have been traveling there for thousands of years, it is believed to be without secrets. And yet, far below its surface, lie vast unexplored territories, luxurious gardens worthy of the finest tropical coral reefs. These natural wonders are inaccessible to the traditional diver, in a twilight zone, between 60 and 120 m, where there's less than 1% of sunlight. If diving at such depths is always a challenge, staying there is a fantasy, a utopia that becomes reality in Planet Mediterranean.

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75 years ago, near the end of World War II, Japan and the US engaged in a desperate battle in Okinawa. The Americans used weapons of unprecedented lethality, targeting civilians as well as the Japanese military. Civilians sought shelter in caves alongside the Japanese troops they thought would defend them, only to face hunger and threats of execution if they surrendered. This is the story of ordinary people who were caught in the conflict and perished during the battle's final month.

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A team from Cardiff University discover phosphine in the atmosphere of Venus and possible signs of life.

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