The Most Powerful Black Holes in the Universe

Andrew Richter shares odd celebrity encounters from his years of working in hotels.

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.

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.

This shows physicist Stephen Hawking's life as he deals with the ALS that renders him immobile and unable to speak without the use of a computer. Hawking's friends, family, classmates, and peers are interviewed not only about his theories but the man himself.

In today's climate debate, there is only one factor that cannot be calculated in climate models - humans. How can we nevertheless understand our role in the climate system and manage the crisis? Climate change is a complex global problem. Increasingly extreme weather events, rising sea levels, and more difficult living conditions - including for us humans - are already the order of the day. Global society has never faced such a complex challenge. For young people in particular, the frightening climate scenarios will be a reality in the future. For the global south, it is already today. To overcome this crisis, different perspectives are needed. "THE UNPREDICTABLE FACTOR" goes back to the origins of the German environmental movement, accompanies today's activists in the Rhineland in their fight against the coal industry and gives a voice to scientists from climate research, ethnology and psychology.

Long Gone Wild focuses on the plight of captive orcas, picking up where the acclaimed documentary Blackfish left off while telling a uniquely new and different story...

Every year, thousands of Antarctica's emperor penguins make an astonishing journey to breed their young. They walk, marching day and night in single file 70 miles into the darkest, driest and coldest continent on Earth. This amazing, true-life tale is touched with humour and alive with thrills. Breathtaking photography captures the transcendent beauty and staggering drama of devoted parent penguins who, in the fierce polar winter, take turns guarding their egg and trekking to the ocean in search of food. Predators hunt them, storms lash them. But the safety of their adorable chicks makes it all worthwhile. So follow the leader... to adventure!!

OCEAN PARADISE unveils the secrets of the Pacific Ocean’s most remote islands and marine national monuments, immersing viewers in the pristine beauty of distant landscapes and reefs that defy the encroachment of civilization. This spellbinding adventure provides audiences with new insights and appreciation for the wonders of nature, and our efforts to preserve these almost-sacred places for future generations.

Twenty years ago, a young American hiker named Chris McCandless, the accomplished son of successful middle class parents, was found dead in an abandoned bus in the Alaskan wilderness and became the subject of the best-selling book and movie “Into the Wild.” Now, PBS retraces Chris McCandless’ steps to try to piece together why he severed all ties with his past, burnt or gave away all his money, changed his name and headed into the Denali Wilderness. McCandless' own letters, released for the first time, as well as new and surprising interviews, probe the mystery that still lies at the heart of a story that has become part of the American literary canon and compels so many to this day.

David Attenborough investigates the remarkable life and death of Jumbo the elephant - a celebrity animal superstar whose story is said to have inspired the movie Dumbo. Attenborough joins a team of scientists and conservationists to unravel the complex and mysterious story of this large African elephant - an elephant many believed to be the biggest in the world. With unique access to Jumbo's skeleton at the American Museum of Natural History, the team work together to separate myth from reality. How big was Jumbo really? How was he treated in captivity? And how did he die? Jumbo's bones may offer vital clues.

THE QUEST: Everest is a journey to deeper understand and climb the most iconic mountain in the world, Mt. Everest, and to reveal its amazing history and culture. From experiencing Everest like never before to witnessing unique stories about one of the most remarkable places on earth, THE QUEST: Everest is a one-of-a-kind cinematic tribute to the human spirit of adventure that lives inside us all.

High up on the Tibetan plateau. Amongst unexplored and inaccessible valleys lies one of the last sanctuaries of the wild world, where rare and undiscovered fauna lives. Vincent Munier, one of the world’s most renowned wildlife photographers takes the adventurer and novelist Sylvain Tesson (In the Forest of Siberia) with him on his latest mission. For several weeks, they’ll explore these valleys searching for unique animals and try to spot the snow leopard, one of the rarest and most difficult big cats to approach.

The story of a little loggerhead turtle, as she follows in the path of her ancestors on one of the most extraordinary journeys in the natural world. Born on a beach in Florida, she rides the Gulf Stream up towards the Arctic and ultimately swims around the entire North Atlantic across to Africa and back to the beach where she was born. But the odds are stacked against her; just one in ten thousand turtles survive the journey.

Drawing from never-before-seen footage that has been tucked away in the National Geographic archives, director Brett Morgen tells the story of Jane Goodall, a woman whose chimpanzee research revolutionized our understanding of the natural world.

Follow the Manhattan-based Beavan family as they abandon their high consumption 5th Avenue lifestyle and try to live a year while making no net environmental impact.

Alaska... Here, in this vast and spectacularly beautiful land teeming with abundant wildlife, discover the "Spirit of the Wild." Experience it in the explosive calving of glaciers, the celestial fires of the Aurora Borealis. Witness it in the thundering stampede of caribou, the beauty of the polar bear and the stealthful, deadly hunt of the wolf pack.

An exploration of technologically developing nations and the effect the transition to Western-style modernization has had on them.

In one single, epic camera move we journey from Earth's surface to the outermost reaches of the universe on a grand tour of the cosmos, to explore newborn stars, distant planets, black holes and beyond.

An underwater exploration beneath kelp forests in the Pacific Ocean off the coast of Southern California. The film captures the birth of a shark, squids mating, a lobster molting, a fish protecting its nest from an octopus and a sea urchin, and the sea bed covered with brittle stars.