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This astounding documentary delves into the mysteries of the Tunguska event – one of the largest cosmic disasters in the history of civilisation. At 7.15 am, on 30th June 1908, a giant fireball, as bright the sun, exploded in the sky over Tunguska in central Siberia. Its force was equivalent to twenty million tonnes of TNT, and a thousand times greater than that of the atomic bomb dropped on Hiroshima in 1945. An estimated sixty million trees were felled over an area of over two thousand square kilometres - an area over half the size of Rhode Island. If the explosion had occurred over London or Paris, hundreds of thousands of people would have been killed.

A documentary about the beautiful nature of Drenthe

The life and tragic death of Whitney Houston.

Survivor Abduweli flees a Chinese Uyghur internment camp to Norway. Now, heading to Germany to confront a past torturer, his daughter’s panic attack forces a choice: exposing Uyghur genocide for the world, or shielding his family from painful memories.

Riding Giants is story about big wave surfers who have become heroes and legends in their sport. Directed by the skateboard guru Stacy Peralta.

When the 2004 tsunami hit the coast of Sri Lanka, 65-year-old Anton Ambrose's wife and daughter were killed. "In five minutes," he says, "I lost everything." A year later, Anton returns to Sri Lanka. With him is his nephew, award-winning filmmaker Rohan Fernando. A Tamil, Anton moved to California in the 1970s and became a very successful gynecologist. His daughter, Orlantha, made the opposite journey, returning to Sri Lanka where she ran a non-profit group that gave underprivileged children free violin lessons. Blood and Water is the story of one man's search for meaning in the face of overwhelming loss, but it is also filled with improbable characters, unintentional comedy and situational ironies.

Until now, they have stood on the sidelines. They have not appeared before the cameras. They have not taken part in public discussion. It is mainly to them that the documentary film by the well-known journalist Ewa Ewart was devoted. It shows the face of the Smolensk catastrophe through the eyes of the victims' families. April 10, 2010 went down in the memory of Poles as a day of national drama. But for the characters in the film, it was the day of their greatest personal drama. Along with the presidential couple, their loved ones passed away in shocking circumstances. For most, the time passing since the Smolensk catastrophe does not bring relief. Ewa Ewart and her film crew accompany the families at various stages of their struggle with difficult emotions. The film is in the process of being made and will include sequences and stills that have not been used anywhere before.

When a Mongolian nomadic family's newest camel colt is rejected by its mother, a musician is needed for a ritual to change her mind.

Thanks to sophisticated equipment, marine biologists have managed to capture unprecedented scenes of the intimate life of humpback whales off the Australian coast. A spectacular immersion in the intimate life of this mysterious species. Off the coast of the Kimberley in northwestern Australia is a major breeding ground for humpback whales. Thanks to sophisticated equipment, such as aerial cameras on board quadrotors or innovative night vision technologies, Curt and Micheline Jenner, whale researchers, capture unprecedented scenes revealing the behavior of cetaceans.

During the rice sowing season, Jun, a young Catalan of Chinese origin, works as a seasonal worker in the Ebro Delta. This ancient labour will make him confront his own roots and the distance that separates him from his family.

A documentary of insect life in meadows and ponds, using incredible close-ups, slow motion, and time-lapse photography. It includes bees collecting nectar, ladybugs eating mites, snails mating, spiders wrapping their catch, a scarab beetle relentlessly pushing its ball of dung uphill, endless lines of caterpillars, an underwater spider creating an air bubble to live in, and a mosquito hatching.

River Monsters Presents: Killer Catfish Extended Cut

Ian loves camp. 2011 marks his seventh year at William Lawrence Camp in New Hampshire, USA. After many summers as a camper, 2011 was his first year as a full camp counselor. Ian's love and enthusiasm for his summer retreat are unrivaled. How will he adapt to the demands of his new role?

As the most dammed, dibbed, and diverted river in the world struggles to support thirty million people and the peace-keeping agreement known as the Colorado River Pact reaches its limits, WATERSHED introduces hope. Can we meet the needs of a growing population in the face of rising temperatures and lower rainfall in an already arid land? Can we find harmony amongst the competing interests of cities, agriculture, industry, recreation, wildlife, and indigenous communities with rights to the water? Sweeping through seven U.S. and two Mexican states, the Colorado River is a lifeline to expanding populations and booming urban centers that demand water for drinking, sanitation and energy generation. And with 70% of the rivers’ water supporting agriculture, the river already runs dry before it reaches its natural end at the Gulf of California. Unless action is taken, the river will continue its retreat – a potentially catastrophic scenario for the millions who depend on it.

Deep Blue is a major documentary feature film shot by the BBC Natural History Unit. An epic cinematic rollercoaster ride for all ages, Deep Blue uses amazing footage to tell us the story of our oceans and the life they support.

An epic story of adventure, starring some of the most magnificent and courageous creatures alive, awaits you in EARTH. Disneynature brings you a remarkable story of three animal families on a journey across our planet – polar bears, elephants and humpback whales.

A documentary on Al Gore's campaign to make the issue of global warming a recognized problem worldwide.

Werner Herzog's documentary film about the "Grizzly Man" Timothy Treadwell and what the thirteen summers in a National Park in Alaska were like in one man's attempt to protect the grizzly bears. The film is full of unique images and a look into the spirit of a man who sacrificed himself for nature.

We get to know a few inhabitants of central European rivers.

Arctic Tale is a 2007 documentary film from the National Geographic Society about the life cycle of a walrus and her calf, and a polar bear and her cubs, in a similar vein to the 2005 hit production March of the Penguins, also from National Geographic.