BBC Earth

The team travels to every corner of the planet over the course of five years.

When Earth first formed from clouds of dust and gas 4.6 billion years ago, it was devoid of an atmosphere, an inhospitable rock floating in the black void of space.

Simon revisits the incredible characters he's met during his travels.

Simon Reeve travels through some of the most remote landscapes on Earth in search of the people and the wildlife of the planet's wildernesses.

Simon revisits the incredible characters he's met during his travels.

Simon Reeve travels through some of the most remote landscapes on Earth in search of the people and the wildlife of the planet's wildernesses.

A breathtaking journey down the German section of the beautiful Moselle river, famous for vineyards on its dramatically steep banks and remarkable meandering loops.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

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

A breathtaking journey down the German section of the beautiful Moselle river, famous for vineyards on its dramatically steep banks and remarkable meandering loops.

A mysterious predator prowls the streets of a giant metropolis.

Explores strongholds abandoned by their architects; a lost city in the Amazon jungle; a desert fortress made by humanity's most notorious empire; explores a city of identical castles; examines a Greek isle's bloody history from the air.

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

A mysterious predator prowls the streets of a giant metropolis.

Explores strongholds abandoned by their architects; a lost city in the Amazon jungle; a desert fortress made by humanity's most notorious empire; explores a city of identical castles; examines a Greek isle's bloody history from the air.

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

A mysterious predator prowls the streets of a giant metropolis.

New York's Hudson River stretches 315 miles through natural landscapes, from the Adirondack Mountains to the George Washington Bridge and Statue of Liberty.

Simon revisits the incredible characters he's met during his travels.

Simon Reeve travels through some of the most remote landscapes on Earth in search of the people and the wildlife of the planet's wildernesses.

Simon revisits the incredible characters he's met during his travels.

Simon Reeve travels through some of the most remote landscapes on Earth in search of the people and the wildlife of the planet's wildernesses.

Professor Brian Cox explores the solar system's frozen worlds; he meets the dwarf planet where mountains of solid ice float across the surface, the black and white moon painted with frost and a world illuminated by a strange form of ice.

How humans discovered the planets and how they became a complex solar system.

Venus offers a complex story with its thick atmosphere and a substantial amount of matter.

Professor Brian Cox explores the solar system's frozen worlds; he meets the dwarf planet where mountains of solid ice float across the surface, the black and white moon painted with frost and a world illuminated by a strange form of ice.

How humans discovered the planets and how they became a complex solar system.

Venus offers a complex story with its thick atmosphere and a substantial amount of matter.

New York's Hudson River stretches 315 miles through natural landscapes, from the Adirondack Mountains to the George Washington Bridge and Statue of Liberty.

Explores strongholds abandoned by their architects; a lost city in the Amazon jungle; a desert fortress made by humanity's most notorious empire; explores a city of identical castles; examines a Greek isle's bloody history from the air.

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

New York's Hudson River stretches 315 miles through natural landscapes, from the Adirondack Mountains to the George Washington Bridge and Statue of Liberty.

Hope gets hurt; an owl gets a nasty welcome back to the wild.

Peek at landmarks in places where they shouldn't be; wing your way over an imperial pyramid in the Netherlands, a metal sphere in remote Russia, a lion shape carved into an English hillside and a bare swath cut through an Austrian forest.

Costa Rica is a world of its own; a tropical corridor squeezed between two great oceans, powered by rivers and volcanoes; its volcanoes erupt and deposit minerals into the soil, making the land fertile and creating the country's rich bio-diversity.

Hope gets hurt; an owl gets a nasty welcome back to the wild.

Peek at landmarks in places where they shouldn't be; wing your way over an imperial pyramid in the Netherlands, a metal sphere in remote Russia, a lion shape carved into an English hillside and a bare swath cut through an Austrian forest.

Costa Rica is a world of its own; a tropical corridor squeezed between two great oceans, powered by rivers and volcanoes; its volcanoes erupt and deposit minerals into the soil, making the land fertile and creating the country's rich bio-diversity.

Hope gets hurt; an owl gets a nasty welcome back to the wild.

Bill Nighy narrates a trip along the River Po, traveling across northern Italy from the snow-capped Alps to the delta where it meets the Adriatic Sea.

Professor Brian Cox explores the solar system's frozen worlds; he meets the dwarf planet where mountains of solid ice float across the surface, the black and white moon painted with frost and a world illuminated by a strange form of ice.

How humans discovered the planets and how they became a complex solar system.

Venus offers a complex story with its thick atmosphere and a substantial amount of matter.

Professor Brian Cox explores the solar system's frozen worlds; he meets the dwarf planet where mountains of solid ice float across the surface, the black and white moon painted with frost and a world illuminated by a strange form of ice.

How humans discovered the planets and how they became a complex solar system.

Venus offers a complex story with its thick atmosphere and a substantial amount of matter.

At the top of the planet lies the Arctic Ocean; after four months of winter darkness, the sun returns to reveal a frozen ocean covered in ice; mother polar bears emerge from their hillside dens and lead their cubs down to the sea ice to hunt.

Brian questions how far humans will go in their exploration of the cosmos.

Traveling from the frigid, icy waters of Alaska to the balmy, serene seas of the tropics; seeing how varied shark species really are; getting insight into their lives, learning why these endangered creatures are not monsters at all.

At the top of the planet lies the Arctic Ocean; after four months of winter darkness, the sun returns to reveal a frozen ocean covered in ice; mother polar bears emerge from their hillside dens and lead their cubs down to the sea ice to hunt.

Brian questions how far humans will go in their exploration of the cosmos.

Traveling from the frigid, icy waters of Alaska to the balmy, serene seas of the tropics; seeing how varied shark species really are; getting insight into their lives, learning why these endangered creatures are not monsters at all.

Bill Nighy narrates a trip along the River Po, traveling across northern Italy from the snow-capped Alps to the delta where it meets the Adriatic Sea.

Peek at landmarks in places where they shouldn't be; wing your way over an imperial pyramid in the Netherlands, a metal sphere in remote Russia, a lion shape carved into an English hillside and a bare swath cut through an Austrian forest.

Costa Rica is a world of its own; a tropical corridor squeezed between two great oceans, powered by rivers and volcanoes; its volcanoes erupt and deposit minerals into the soil, making the land fertile and creating the country's rich bio-diversity.

Bill Nighy narrates a trip along the River Po, traveling across northern Italy from the snow-capped Alps to the delta where it meets the Adriatic Sea.

Hope and Dr. Barry journey to Central America to meet frontline wildlife rescuers in the jungles of Costa Rica.

Examine strange relics forgotten by time; visit a perturbing circle of stone in the Golan Heights; a mountain of headless statues in Turkey; a castle left to crumble in the Saudi Arabian desert; a time-worn secret in the wilds of Peru.

Iceland is the world's largest volcanic island and new ground is born daily.

Hope and Dr. Barry journey to Central America to meet frontline wildlife rescuers in the jungles of Costa Rica.

Examine strange relics forgotten by time; visit a perturbing circle of stone in the Golan Heights; a mountain of headless statues in Turkey; a castle left to crumble in the Saudi Arabian desert; a time-worn secret in the wilds of Peru.

Iceland is the world's largest volcanic island and new ground is born daily.

Hope and Dr. Barry journey to Central America to meet frontline wildlife rescuers in the jungles of Costa Rica.

Bill Nighy leads a magical journey in the Norfolk Broads along England's holiday river, the River Bure; discovering a watery world where both wildlife and recreation go hand in hand.

Scientists uncover clues at a fossil dig site in North Dakota that reveal details about the day an asteroid struck Earth and wiped out the dinosaurs.

Exploring fossils from a North Dakota site that may reveal what happened when an asteroid struck Earth and wiped out the dinosaurs.

Traveling from the frigid, icy waters of Alaska to the balmy, serene seas of the tropics; seeing how varied shark species really are; getting insight into their lives, learning why these endangered creatures are not monsters at all.

At the top of the planet lies the Arctic Ocean; after four months of winter darkness, the sun returns to reveal a frozen ocean covered in ice; mother polar bears emerge from their hillside dens and lead their cubs down to the sea ice to hunt.

Brian questions how far humans will go in their exploration of the cosmos.

Traveling from the frigid, icy waters of Alaska to the balmy, serene seas of the tropics; seeing how varied shark species really are; getting insight into their lives, learning why these endangered creatures are not monsters at all.

Fifty years since the last moon landing, Associate Professor Alan Duffy talks about the new space race, where innovators and big dreamers are rewriting the rule book on space exploration.

The earth is a machine with its moving parts buried deep beyond our sight; revealing what is beneath our feet.

Revealing what would be left if the planet was drained of its oceans.

Fifty years since the last moon landing, Associate Professor Alan Duffy talks about the new space race, where innovators and big dreamers are rewriting the rule book on space exploration.

The earth is a machine with its moving parts buried deep beyond our sight; revealing what is beneath our feet.