BBC Earth

Dive into the historical and natural secrets of the deep; explore an uninhabited concrete island, ocean spirals off the Australian coast, underwater evidence of a violent past and tracks thousands of metres below the sea's surface.

Simon looks back on some of the most dangerous situations he's experienced.

Brave the constant wind, rain, and snow that pummels the foot of South America; Cross treacherous ice fields that are losing ground due to climate change, push through the foothills of the Andes, and ride alongside Patagonia's legendary gauchos.

Simon travels through the high Andes mountains from Peru to Bolivia.

Ken O'Sullivan explores the marine life of the northern part of the ocean, beginning with the dark waters off the coast of the north of Ireland in winter and the strange animals that can be found there.

In 1989, a ferocious explosion on the sun's surface released a cloud of highly charged particles containing the energy of 20 million nuclear bombs, and this solar superstorm then hit Earth; in Quebec, Canada, the lights suddenly went out.

Professor Cox explores the cycles of time that define the lives of humans.

Unearth the watery past of Mars and learn why the Red Planet once looked a lot like Earth, then investigate the theory that our planet once had a ring like Saturn's. Explore the unexpected everyday technologies born from modern space exploration.

At the very end of East Africa's Great Rift Valley, there's a "land that time forgot"; the rolling grasslands of the Luangwa Valley.

Alaskans must adapt to new obstacles to survive in deep winter.

Exploring the Moukalaba Doudou National Park in Gabon, in search of an undiscovered population of chimpanzees.

At the very end of East Africa's Great Rift Valley, there's a "land that time forgot"; the rolling grasslands of the Luangwa Valley.

Alaskans must adapt to new obstacles to survive in deep winter.

Exploring the Moukalaba Doudou National Park in Gabon, in search of an undiscovered population of chimpanzees.

At the very end of East Africa's Great Rift Valley, there's a "land that time forgot"; the rolling grasslands of the Luangwa Valley.

Alaskans must adapt to new obstacles to survive in deep winter.

Exploring the Moukalaba Doudou National Park in Gabon, in search of an undiscovered population of chimpanzees.

The Cassini-Huygens spacecraft has been sending images and a wealth of scientific revelations from Saturn's orbit since 2004.

The first fawn of the year arrives at the rehab centre; two volunteers plan to make rehab a lifelong commitment.

Traipsing along ancient pathways crisscrossing Easter Island; finding gigantic designs carved into Asia's Eastern Steppe; ascending a tall pyramid rising from Antarctica's icy landscape.

The jungle, underwater caves and lush everglades of the Yucatán shelter Mexico's largest predator, Morelet's crocodile.

The first fawn of the year arrives at the rehab centre; two volunteers plan to make rehab a lifelong commitment.

Traipsing along ancient pathways crisscrossing Easter Island; finding gigantic designs carved into Asia's Eastern Steppe; ascending a tall pyramid rising from Antarctica's icy landscape.

The jungle, underwater caves and lush everglades of the Yucatán shelter Mexico's largest predator, Morelet's crocodile.

The first fawn of the year arrives at the rehab centre; two volunteers plan to make rehab a lifelong commitment.

Dara tells the story of how the first photograph of the far side of the moon left scientists baffled and tries a virtual reality headset to walk on the moon.

Traipsing along ancient pathways crisscrossing Easter Island; finding gigantic designs carved into Asia's Eastern Steppe; ascending a tall pyramid rising from Antarctica's icy landscape.

From Sydney to the Greater Blue Mountains, Zach and Darin meet with leading eco-warriors to learn about protected lands and habitat conservation.

Paddy explores a South Wales factory making Jammie Dodgers, revealing how they produce 4.4 billion biscuits a year; Cherry tests dunking science and Ruth uncovers wartime history.

At the very end of East Africa's Great Rift Valley, there's a "land that time forgot"; the rolling grasslands of the Luangwa Valley.

Alaskans must adapt to new obstacles to survive in deep winter.

Exploring the Moukalaba Doudou National Park in Gabon, in search of an undiscovered population of chimpanzees.

In the Gobi Desert, Gordon must gain his camel's trust to survive and find the Gobi bear.

Four rival families, leopards, hyena, wild dogs and lions, all try to claim a rich corner of Zambian paradise as their home.

The team looks inside a waterhole ecosystem in Mwiba Wildlife Reserve in Tanzania; elephants, Cape buffalo and lions make it a home.

In the Gobi Desert, Gordon must gain his camel's trust to survive and find the Gobi bear.

Four rival families, leopards, hyena, wild dogs and lions, all try to claim a rich corner of Zambian paradise as their home.

The team looks inside a waterhole ecosystem in Mwiba Wildlife Reserve in Tanzania; elephants, Cape buffalo and lions make it a home.

Never seen before footage of Hope's greatest stories.

Four rival families, leopards, hyena, wild dogs and lions, all try to claim a rich corner of Zambian paradise as their home.

The team looks inside a waterhole ecosystem in Mwiba Wildlife Reserve in Tanzania; elephants, Cape buffalo and lions make it a home.

The jungle, underwater caves and lush everglades of the Yucatán shelter Mexico's largest predator, Morelet's crocodile.

Learning the secret of rehabilitating seals from experts at Vancouver Aquarium; search and rescue is launched.

Exploring some of the most cavernous places on the planet, including an expansive Siberian crater with no explainable origin, Greenland's bizarre black holes, an ancient forbidden well in the Yemeni desert, and a voluminous void in Antarctica.

In the heart of central Mexico, lies Sierra Gorda, a region that is home to bobcats, pumas and flying squirrels.

Learning the secret of rehabilitating seals from experts at Vancouver Aquarium; search and rescue is launched.

Exploring some of the most cavernous places on the planet, including an expansive Siberian crater with no explainable origin, Greenland's bizarre black holes, an ancient forbidden well in the Yemeni desert, and a voluminous void in Antarctica.

In the heart of central Mexico, lies Sierra Gorda, a region that is home to bobcats, pumas and flying squirrels.

Learning the secret of rehabilitating seals from experts at Vancouver Aquarium; search and rescue is launched.

Alaskans must adapt to new obstacles to survive in deep winter.

Simon looks back on some of the most dangerous situations he's experienced.

Brave the constant wind, rain, and snow that pummels the foot of South America; Cross treacherous ice fields that are losing ground due to climate change, push through the foothills of the Andes, and ride alongside Patagonia's legendary gauchos.

Simon travels through the high Andes mountains from Peru to Bolivia.

Simon looks back on some of the most dangerous situations he's experienced.

Brave the constant wind, rain, and snow that pummels the foot of South America; Cross treacherous ice fields that are losing ground due to climate change, push through the foothills of the Andes, and ride alongside Patagonia's legendary gauchos.

Simon travels through the high Andes mountains from Peru to Bolivia.

An orphaned baby Triceratops must outwit a deadly Tyrannosaurus rex.

Ken travels to the south coast of Ireland searching for fin whales; these creatures are the second-largest animals to have ever lived.

Levison and Alberto travel through Guatemala, Honduras and Nicaragua.

An orphaned baby Triceratops must outwit a deadly Tyrannosaurus rex.

Ken travels to the south coast of Ireland searching for fin whales; these creatures are the second-largest animals to have ever lived.