BBC Earth Astro

Back in 1955 Tim had arrived in Nepal by crossing the Middle East, but today Iran is hostile, Iraq fragile and Syria at war. Alex and Nat are forced on a detour through western China and Central Asia.

In the far North of our planet lie vast frozen lands of snow-covered forest and open tundra. These are lands of extremes that push animals to their limits.

Back in 1955 Tim had arrived in Nepal by crossing the Middle East, but today Iran is hostile, Iraq fragile and Syria at war. Alex and Nat are forced on a detour through western China and Central Asia.

Discover how perfect potatoes, bubblicious gumballs, sinfully delicious hot chocolate and finger lickin' barbecue ribs gets to the masses.

Discover how the most delectable cold smoked salmon, culture-rich yogurt, perfect pouches of ravioli and the freshest garden salad gets to the masses.

In the far North of our planet lie vast frozen lands of snow-covered forest and open tundra. These are lands of extremes that push animals to their limits.

After losing a cache of winter meat last season, Kim and Pierre look to the land for a source of emergency food. Bentley and his wife Felica explore Schade Lake, hunting for early season beaver.

Steve takes us into the dangerous world of crocodiles - one of nature's most fearsome predators - entering croc-infested territory escorted by an armed safari guide.

Back in 1955 Tim had arrived in Nepal by crossing the Middle East, but today Iran is hostile, Iraq fragile and Syria at war. Alex and Nat are forced on a detour through western China and Central Asia.

Discover how perfect potatoes, bubblicious gumballs, sinfully delicious hot chocolate and finger lickin' barbecue ribs gets to the masses.

Discover how the most delectable cold smoked salmon, culture-rich yogurt, perfect pouches of ravioli and the freshest garden salad gets to the masses.

In the far North of our planet lie vast frozen lands of snow-covered forest and open tundra. These are lands of extremes that push animals to their limits.

After losing a cache of winter meat last season, Kim and Pierre look to the land for a source of emergency food. Bentley and his wife Felica explore Schade Lake, hunting for early season beaver.

Steve takes us into the dangerous world of crocodiles - one of nature's most fearsome predators - entering croc-infested territory escorted by an armed safari guide.

Discover how perfect potatoes, bubblicious gumballs, sinfully delicious hot chocolate and finger lickin' barbecue ribs gets to the masses.

Discover how the most delectable cold smoked salmon, culture-rich yogurt, perfect pouches of ravioli and the freshest garden salad gets to the masses.

In the far North of our planet lie vast frozen lands of snow-covered forest and open tundra. These are lands of extremes that push animals to their limits.

After losing a cache of winter meat last season, Kim and Pierre look to the land for a source of emergency food. Bentley and his wife Felica explore Schade Lake, hunting for early season beaver.

The retired footballer travels to the southern Utah desert after his kids accuse him of softness. They hike through the desert, but Deion's fear of snakes must soon be overcome.

Simon Reeve crosses the parched desert of southern Africa, tracking wildebeest with the famous hunter gatherers of the Kalahari before heading to the oasis of the Okavango Delta.

Join Ryan as he treks through the Upper Mustang Kingdom and explorers a remote Himalayan Kingdom in central Nepal.

Ben journeys to one of Britain's furthest outposts - the Shetland Islands to meet Helen and Jason, a couple on the edge of the weather-beaten island of Yell.

The retired footballer travels to the southern Utah desert after his kids accuse him of softness. They hike through the desert, but Deion's fear of snakes must soon be overcome.

Simon Reeve crosses the parched desert of southern Africa, tracking wildebeest with the famous hunter gatherers of the Kalahari before heading to the oasis of the Okavango Delta.

Join Ryan as he treks through the Upper Mustang Kingdom and explorers a remote Himalayan Kingdom in central Nepal.

Ben journeys to one of Britain's furthest outposts - the Shetland Islands to meet Helen and Jason, a couple on the edge of the weather-beaten island of Yell.

The retired footballer travels to the southern Utah desert after his kids accuse him of softness. They hike through the desert, but Deion's fear of snakes must soon be overcome.

Simon Reeve crosses the parched desert of southern Africa, tracking wildebeest with the famous hunter gatherers of the Kalahari before heading to the oasis of the Okavango Delta.

Join Ryan as he treks through the Upper Mustang Kingdom and explorers a remote Himalayan Kingdom in central Nepal.

Discover how perfect potatoes, bubblicious gumballs, sinfully delicious hot chocolate and finger lickin' barbecue ribs gets to the masses.

Join Ryan as he treks through the Upper Mustang Kingdom and explorers a remote Himalayan Kingdom in central Nepal.

Ben journeys to one of Britain's furthest outposts - the Shetland Islands to meet Helen and Jason, a couple on the edge of the weather-beaten island of Yell.

The retired footballer travels to the southern Utah desert after his kids accuse him of softness. They hike through the desert, but Deion's fear of snakes must soon be overcome.

Simon Reeve crosses the parched desert of southern Africa, tracking wildebeest with the famous hunter gatherers of the Kalahari before heading to the oasis of the Okavango Delta.

Join Ryan as he treks through the Upper Mustang Kingdom and explorers a remote Himalayan Kingdom in central Nepal.

Back in 1955 Tim had arrived in Nepal by crossing the Middle East, but today Iran is hostile, Iraq fragile and Syria at war. Alex and Nat are forced on a detour through western China and Central Asia.

Ben journeys to one of Britain's furthest outposts - the Shetland Islands to meet Helen and Jason, a couple on the edge of the weather-beaten island of Yell.

David Attenborough examines the frozen worlds of the Arctic and Antarctic.

Simon Reeve crosses the parched desert of southern Africa, tracking wildebeest with the famous hunter gatherers of the Kalahari before heading to the oasis of the Okavango Delta.

Back in 1955 Tim had arrived in Nepal by crossing the Middle East, but today Iran is hostile, Iraq fragile and Syria at war. Alex and Nat are forced on a detour through western China and Central Asia.

Join Ryan as he treks through the Upper Mustang Kingdom and explorers a remote Himalayan Kingdom in central Nepal.

The retired footballer travels to the southern Utah desert after his kids accuse him of softness. They hike through the desert, but Deion's fear of snakes must soon be overcome.

Simon Reeve crosses the parched desert of southern Africa, tracking wildebeest with the famous hunter gatherers of the Kalahari before heading to the oasis of the Okavango Delta.

Ben journeys to one of Britain's furthest outposts - the Shetland Islands to meet Helen and Jason, a couple on the edge of the weather-beaten island of Yell.

Bear Grylls is joined by Tom Arnold on an adventure through the mountains of Oregon. This adventure begins with a helicopter ride to an isolated forest.

The secrets of canid success and their incredible strategies for survival, from leaping jackals to sneezing African wild dogs, and gray foxes that climb trees.

Mel B, Ruby Wax and Emily Atack go on a historic, raucous road trip.

We visit an extraordinary bridge that spans a vast valley and becomes the tallest in the world, and a luxury hotel was built upside down in an abandoned quarry in China.

Bear Grylls is joined by Tom Arnold on an adventure through the mountains of Oregon. This adventure begins with a helicopter ride to an isolated forest.

The secrets of canid success and their incredible strategies for survival, from leaping jackals to sneezing African wild dogs, and gray foxes that climb trees.

Mel B, Ruby Wax and Emily Atack go on a historic, raucous road trip.

We visit an extraordinary bridge that spans a vast valley and becomes the tallest in the world, and a luxury hotel was built upside down in an abandoned quarry in China.

Bear Grylls is joined by Tom Arnold on an adventure through the mountains of Oregon. This adventure begins with a helicopter ride to an isolated forest.

The secrets of canid success and their incredible strategies for survival, from leaping jackals to sneezing African wild dogs, and gray foxes that climb trees.

Join Ryan as he treks through the Upper Mustang Kingdom and explorers a remote Himalayan Kingdom in central Nepal.

Mel B, Ruby Wax and Emily Atack go on a historic, raucous road trip.

The secrets of canid success and their incredible strategies for survival, from leaping jackals to sneezing African wild dogs, and gray foxes that climb trees.

We visit an extraordinary bridge that spans a vast valley and becomes the tallest in the world, and a luxury hotel was built upside down in an abandoned quarry in China.

Bear Grylls is joined by Tom Arnold on an adventure through the mountains of Oregon. This adventure begins with a helicopter ride to an isolated forest.

Ben journeys to one of Britain's furthest outposts - the Shetland Islands to meet Helen and Jason, a couple on the edge of the weather-beaten island of Yell.

The secrets of canid success and their incredible strategies for survival, from leaping jackals to sneezing African wild dogs, and gray foxes that climb trees.

We visit an extraordinary bridge that spans a vast valley and becomes the tallest in the world, and a luxury hotel was built upside down in an abandoned quarry in China.

Mel B, Ruby Wax and Emily Atack go on a historic, raucous road trip.

David Attenborough explores earth's mightiest mountain ranges.

The secrets of canid success and their incredible strategies for survival, from leaping jackals to sneezing African wild dogs, and gray foxes that climb trees.

We visit an extraordinary bridge that spans a vast valley and becomes the tallest in the world, and a luxury hotel was built upside down in an abandoned quarry in China.

Ben journeys to one of Britain's furthest outposts - the Shetland Islands to meet Helen and Jason, a couple on the edge of the weather-beaten island of Yell.

Bear Grylls is joined by Tom Arnold on an adventure through the mountains of Oregon. This adventure begins with a helicopter ride to an isolated forest.

The secrets of canid success and their incredible strategies for survival, from leaping jackals to sneezing African wild dogs, and gray foxes that climb trees.

Mel B, Ruby Wax and Emily Atack go on a historic, raucous road trip.

World-renowned survivalistBear GryllsleadsZac Efron on a non-stop extreme survival journey into the Northeast Appalachian mountain range wilderness.

Steve tries to find out if monster crocodiles can still thrive in the Reserve, and encounters five-metre-long Henry. But will he finally find the monster croc he's been searching for?

British comedian and travel enthusiast Griff Rhys Jones explores the Frozen Wilds of Manitoba, North Canada, and visits a town that sometimes has more polar bears than people.

Volcano expert Chris Horsley is called back to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared.

World-renowned survivalistBear GryllsleadsZac Efron on a non-stop extreme survival journey into the Northeast Appalachian mountain range wilderness.

Steve tries to find out if monster crocodiles can still thrive in the Reserve, and encounters five-metre-long Henry. But will he finally find the monster croc he's been searching for?

British comedian and travel enthusiast Griff Rhys Jones explores the Frozen Wilds of Manitoba, North Canada, and visits a town that sometimes has more polar bears than people.

Volcano expert Chris Horsley is called back to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared.

World-renowned survivalistBear GryllsleadsZac Efron on a non-stop extreme survival journey into the Northeast Appalachian mountain range wilderness.

Steve tries to find out if monster crocodiles can still thrive in the Reserve, and encounters five-metre-long Henry. But will he finally find the monster croc he's been searching for?

Discover how the most delectable cold smoked salmon, culture-rich yogurt, perfect pouches of ravioli and the freshest garden salad gets to the masses.

British comedian and travel enthusiast Griff Rhys Jones explores the Frozen Wilds of Manitoba, North Canada, and visits a town that sometimes has more polar bears than people.

Volcano expert Chris Horsley is called back to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared.

Steve tries to find out if monster crocodiles can still thrive in the Reserve, and encounters five-metre-long Henry. But will he finally find the monster croc he's been searching for?

Ben journeys to one of Britain's furthest outposts - the Shetland Islands to meet Helen and Jason, a couple on the edge of the weather-beaten island of Yell.

World-renowned survivalistBear GryllsleadsZac Efron on a non-stop extreme survival journey into the Northeast Appalachian mountain range wilderness.

British comedian and travel enthusiast Griff Rhys Jones explores the Frozen Wilds of Manitoba, North Canada, and visits a town that sometimes has more polar bears than people.

Steve tries to find out if monster crocodiles can still thrive in the Reserve, and encounters five-metre-long Henry. But will he finally find the monster croc he's been searching for?

Back in 1955 Tim had arrived in Nepal by crossing the Middle East, but today Iran is hostile, Iraq fragile and Syria at war. Alex and Nat are forced on a detour through western China and Central Asia.

British comedian and travel enthusiast Griff Rhys Jones explores the Frozen Wilds of Manitoba, North Canada, and visits a town that sometimes has more polar bears than people.

Following the descent of the planet's mightiest rivers from their sources to the sea.

Steve tries to find out if monster crocodiles can still thrive in the Reserve, and encounters five-metre-long Henry. But will he finally find the monster croc he's been searching for?

We visit an extraordinary bridge that spans a vast valley and becomes the tallest in the world, and a luxury hotel was built upside down in an abandoned quarry in China.

Volcano expert Chris Horsley is called back to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared.

World-renowned survivalistBear GryllsleadsZac Efron on a non-stop extreme survival journey into the Northeast Appalachian mountain range wilderness.

Steve tries to find out if monster crocodiles can still thrive in the Reserve, and encounters five-metre-long Henry. But will he finally find the monster croc he's been searching for?

British comedian and travel enthusiast Griff Rhys Jones explores the Frozen Wilds of Manitoba, North Canada, and visits a town that sometimes has more polar bears than people.

World-renowned survivalistBear Gryllsmeets actorBen Stilleron the rugged mountains of the Isle of Skye in Northern Scotland, to go on a once in a lifetime adventure.

North America - a land of change where pioneering animals make the most of surprising opportunities.

Michael finishes his Andalucian odyssey in the capital Sevilla and Carmona.

In Nepal, heavy snow creates a treacherous situation for trekkers in the Himalayan mountains, when an earthquake triggered avalanche sweeps into a busy base camp.

World-renowned survivalistBear Gryllsmeets actorBen Stilleron the rugged mountains of the Isle of Skye in Northern Scotland, to go on a once in a lifetime adventure.

North America - a land of change where pioneering animals make the most of surprising opportunities.

Michael finishes his Andalucian odyssey in the capital Sevilla and Carmona.

In Nepal, heavy snow creates a treacherous situation for trekkers in the Himalayan mountains, when an earthquake triggered avalanche sweeps into a busy base camp.

World-renowned survivalistBear Gryllsmeets actorBen Stilleron the rugged mountains of the Isle of Skye in Northern Scotland, to go on a once in a lifetime adventure.

North America - a land of change where pioneering animals make the most of surprising opportunities.

Michael finishes his Andalucian odyssey in the capital Sevilla and Carmona.

In Nepal, heavy snow creates a treacherous situation for trekkers in the Himalayan mountains, when an earthquake triggered avalanche sweeps into a busy base camp.

Simon Reeve crosses the parched desert of southern Africa, tracking wildebeest with the famous hunter gatherers of the Kalahari before heading to the oasis of the Okavango Delta.

Volcano expert Chris Horsley is called back to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared.

North America - a land of change where pioneering animals make the most of surprising opportunities.

Guided by his Bradshaw's 1913 Handbook of Indian, Foreign and Colonial Travel, Michael Portillo embarks on a classic rail journey from Amritsar to Shimla.

Simon Reeve crosses the parched desert of southern Africa, tracking wildebeest with the famous hunter gatherers of the Kalahari before heading to the oasis of the Okavango Delta.

Volcano expert Chris Horsley is called back to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared.

Join Ryan as he treks through the Upper Mustang Kingdom and explorers a remote Himalayan Kingdom in central Nepal.

Michael finishes his Andalucian odyssey in the capital Sevilla and Carmona.

Guided by his Bradshaw's 1913 Handbook of Indian, Foreign and Colonial Travel, Michael Portillo embarks on a classic rail journey from Amritsar to Shimla.

Mel B, Ruby Wax and Emily Atack go on a historic, raucous road trip.

Join Ryan as he treks through the Upper Mustang Kingdom and explorers a remote Himalayan Kingdom in central Nepal.

Simon Reeve crosses the parched desert of southern Africa, tracking wildebeest with the famous hunter gatherers of the Kalahari before heading to the oasis of the Okavango Delta.

Guided by his Bradshaw's 1913 Handbook of Indian, Foreign and Colonial Travel, Michael Portillo embarks on a classic rail journey from Amritsar to Shimla.

Mel B, Ruby Wax and Emily Atack go on a historic, raucous road trip.

The secrets of canid success and their incredible strategies for survival, from leaping jackals to sneezing African wild dogs, and gray foxes that climb trees.

Michael finishes his Andalucian odyssey in the capital Sevilla and Carmona.

After losing a cache of winter meat last season, Kim and Pierre look to the land for a source of emergency food. Bentley and his wife Felica explore Schade Lake, hunting for early season beaver.

Volcano expert Chris Horsley is called back to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared.

Join Ryan as he treks through the Upper Mustang Kingdom and explorers a remote Himalayan Kingdom in central Nepal.

The secrets of canid success and their incredible strategies for survival, from leaping jackals to sneezing African wild dogs, and gray foxes that climb trees.

Michael finishes his Andalucian odyssey in the capital Sevilla and Carmona.

Simon Reeve crosses the parched desert of southern Africa, tracking wildebeest with the famous hunter gatherers of the Kalahari before heading to the oasis of the Okavango Delta.

Volcano expert Chris Horsley is called back to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared.

Join Ryan as he treks through the Upper Mustang Kingdom and explorers a remote Himalayan Kingdom in central Nepal.

Michael finishes his Andalucian odyssey in the capital Sevilla and Carmona.

In Nepal, heavy snow creates a treacherous situation for trekkers in the Himalayan mountains, when an earthquake triggered avalanche sweeps into a busy base camp.

The secrets of canid success and their incredible strategies for survival, from leaping jackals to sneezing African wild dogs, and gray foxes that climb trees.

Simon Reeve crosses the parched desert of southern Africa, tracking wildebeest with the famous hunter gatherers of the Kalahari before heading to the oasis of the Okavango Delta.

Volcano expert Chris Horsley is called back to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared.

British comedian and travel enthusiast Griff Rhys Jones explores the Frozen Wilds of Manitoba, North Canada, and visits a town that sometimes has more polar bears than people.

The secrets of canid success and their incredible strategies for survival, from leaping jackals to sneezing African wild dogs, and gray foxes that climb trees.

Simon Reeve crosses the parched desert of southern Africa, tracking wildebeest with the famous hunter gatherers of the Kalahari before heading to the oasis of the Okavango Delta.

Volcano expert Chris Horsley is called back to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared.

In Nepal, heavy snow creates a treacherous situation for trekkers in the Himalayan mountains, when an earthquake triggered avalanche sweeps into a busy base camp.

The secrets of canid success and their incredible strategies for survival, from leaping jackals to sneezing African wild dogs, and gray foxes that climb trees.

North America - a land of change where pioneering animals make the most of surprising opportunities.

In Nepal, heavy snow creates a treacherous situation for trekkers in the Himalayan mountains, when an earthquake triggered avalanche sweeps into a busy base camp.

Simon Reeve crosses the parched desert of southern Africa, tracking wildebeest with the famous hunter gatherers of the Kalahari before heading to the oasis of the Okavango Delta.

Back in 1955 Tim had arrived in Nepal by crossing the Middle East, but today Iran is hostile, Iraq fragile and Syria at war. Alex and Nat are forced on a detour through western China and Central Asia.

Mel B, Ruby Wax and Emily Atack go on a historic, raucous road trip.

Steve tries to find out if monster crocodiles can still thrive in the Reserve, and encounters five-metre-long Henry. But will he finally find the monster croc he's been searching for?

Michael embarks on a stunning rail journey from the Thar Desert in Rajasthan to the Indian capital, taking in desert landscapes and dazzling historic palaces.

Back in 1955 Tim had arrived in Nepal by crossing the Middle East, but today Iran is hostile, Iraq fragile and Syria at war. Alex and Nat are forced on a detour through western China and Central Asia.

Michael finishes his Andalucian odyssey in the capital Sevilla and Carmona.

North America - a land of change where pioneering animals make the most of surprising opportunities.

Michael embarks on a stunning rail journey from the Thar Desert in Rajasthan to the Indian capital, taking in desert landscapes and dazzling historic palaces.

British comedian and travel enthusiast Griff Rhys Jones explores the Frozen Wilds of Manitoba, North Canada, and visits a town that sometimes has more polar bears than people.

Michael finishes his Andalucian odyssey in the capital Sevilla and Carmona.

Mel B, Ruby Wax and Emily Atack go on a historic, raucous road trip.

North America - a land of change where pioneering animals make the most of surprising opportunities.

Michael finishes his Andalucian odyssey in the capital Sevilla and Carmona.

Steve tries to find out if monster crocodiles can still thrive in the Reserve, and encounters five-metre-long Henry. But will he finally find the monster croc he's been searching for?

We visit an extraordinary bridge that spans a vast valley and becomes the tallest in the world, and a luxury hotel was built upside down in an abandoned quarry in China.

World-renowned survivalistBear Gryllsmeets actorBen Stilleron the rugged mountains of the Isle of Skye in Northern Scotland, to go on a once in a lifetime adventure.

North America - a land of change where pioneering animals make the most of surprising opportunities.

Steve tries to find out if monster crocodiles can still thrive in the Reserve, and encounters five-metre-long Henry. But will he finally find the monster croc he's been searching for?

Michael embarks on a stunning rail journey from the Thar Desert in Rajasthan to the Indian capital, taking in desert landscapes and dazzling historic palaces.

Michael finishes his Andalucian odyssey in the capital Sevilla and Carmona.

David Attenborough reveals the world's most impressive caves and their amazing wildlife.

North America - a land of change where pioneering animals make the most of surprising opportunities.

Steve tries to find out if monster crocodiles can still thrive in the Reserve, and encounters five-metre-long Henry. But will he finally find the monster croc he's been searching for?

Michael finishes his Andalucian odyssey in the capital Sevilla and Carmona.

World-renowned survivalistBear Gryllsmeets actorBen Stilleron the rugged mountains of the Isle of Skye in Northern Scotland, to go on a once in a lifetime adventure.

Michael embarks on a stunning rail journey from the Thar Desert in Rajasthan to the Indian capital, taking in desert landscapes and dazzling historic palaces.

North America - a land of change where pioneering animals make the most of surprising opportunities.

The news anchor explores the wild Utah desert. They rappel from a helicopter, and gut a dead squirrel before placing it in Tamron's backpack for eating later.

In this final episode we meet the scientists dedicating their lives to understanding what these changes mean, not just for animals and people who live there, but for the planet as a whole.

The team travel through Azerbaijan, Georgia and Turkey, where they re-join the First Overland route at last. Now it's a road-race through Europe to be home in time for Christmas.

Becky struggles to secure a steady supply of winter water; Kim and Pierre turn their attention to harvesting big game; Jon looks to the land for some much-needed supplies.

The news anchor explores the wild Utah desert. They rappel from a helicopter, and gut a dead squirrel before placing it in Tamron's backpack for eating later.

In this final episode we meet the scientists dedicating their lives to understanding what these changes mean, not just for animals and people who live there, but for the planet as a whole.