BBC Earth Astro

Actor Ed Helms faces sheer cliffs, crumbling rock and a cringeworthy dinner menu while atop Colorado mountains; Helms discusses the road to his career in comedy.

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.

Joanna travels the length of India, showing us delights like the flower-sellers of Madurai, before taking us back to Uzbekistan for gory tales and gem making.

President Barack Obama and Bear Grylls explore the Alaskan wilderness, where they observe evidence of climate change, sample wild salmon and catkins tea made with water from melting glaciers.

The best of David Attenborough's early adventures as never seen before - in colour - and with it the story of how the pioneering television series Zoo Quest was made.

Paul departs from Tokyo and travels northward by bullet train, pausing to soak in the serene mountain springs of Unazuki Onsen, before exploring the art of shimmering Kanazawa gold leaf.

Paul explores the remote, thatched villages of Gokayama, through Niigata's rice paddies on a special sake train, to the washi paper mills of Echizen, and the ancient, spiritual waters of Lake Biwa.

Record-breaking Hurricane Otis devastates holiday hotspot Acapulco on Mexico's coast.

President Barack Obama and Bear Grylls explore the Alaskan wilderness, where they observe evidence of climate change, sample wild salmon and catkins tea made with water from melting glaciers.

The best of David Attenborough's early adventures as never seen before - in colour - and with it the story of how the pioneering television series Zoo Quest was made.

Paul departs from Tokyo and travels northward by bullet train, pausing to soak in the serene mountain springs of Unazuki Onsen, before exploring the art of shimmering Kanazawa gold leaf.

Paul explores the remote, thatched villages of Gokayama, through Niigata's rice paddies on a special sake train, to the washi paper mills of Echizen, and the ancient, spiritual waters of Lake Biwa.

Record-breaking Hurricane Otis devastates holiday hotspot Acapulco on Mexico's coast.

The best of David Attenborough's early adventures as never seen before - in colour - and with it the story of how the pioneering television series Zoo Quest was made.

Paul departs from Tokyo and travels northward by bullet train, pausing to soak in the serene mountain springs of Unazuki Onsen, before exploring the art of shimmering Kanazawa gold leaf.

Paul explores the remote, thatched villages of Gokayama, through Niigata's rice paddies on a special sake train, to the washi paper mills of Echizen, and the ancient, spiritual waters of Lake Biwa.

Record-breaking Hurricane Otis devastates holiday hotspot Acapulco on Mexico's coast.

Nick learns about Civil Rights activist Medgar Evers, and paddles on the river at sunset.

The best of David Attenborough's early adventures as never seen before - in colour - and with it the story of how the pioneering television series Zoo Quest was made.

Joanna starts her 2000 mile journey across Japan in Hokkaido.

Joanna travels the length of India, showing us delights like the flower-sellers of Madurai, before taking us back to Uzbekistan for gory tales and gem making.

One of the several reinforced concrete highway overpasses constructed in the 1960s was Seoullo 7017. This deteriorating liability was transformed into an elevated green park by Dutch architects MVRDV.

Nick learns about Civil Rights activist Medgar Evers, and paddles on the river at sunset.

The best of David Attenborough's early adventures as never seen before - in colour - and with it the story of how the pioneering television series Zoo Quest was made.

Joanna travels the length of India, showing us delights like the flower-sellers of Madurai, before taking us back to Uzbekistan for gory tales and gem making.

Joanna starts her 2000 mile journey across Japan in Hokkaido.

Paul departs from Tokyo and travels northward by bullet train, pausing to soak in the serene mountain springs of Unazuki Onsen, before exploring the art of shimmering Kanazawa gold leaf.

Paul explores the remote, thatched villages of Gokayama, through Niigata's rice paddies on a special sake train, to the washi paper mills of Echizen, and the ancient, spiritual waters of Lake Biwa.

The best of David Attenborough's early adventures as never seen before - in colour - and with it the story of how the pioneering television series Zoo Quest was made.

Wild and unpredictable, the Scandinavian coast is a place of haunting beauty and dangerous extremes, home to feisty puffins, orcas, eagles, otters and intrepid base jumpers.

Joanna starts her 2000 mile journey across Japan in Hokkaido.

One of the several reinforced concrete highway overpasses constructed in the 1960s was Seoullo 7017. This deteriorating liability was transformed into an elevated green park by Dutch architects MVRDV.

Joanna travels the length of India, showing us delights like the flower-sellers of Madurai, before taking us back to Uzbekistan for gory tales and gem making.

Paul departs from Tokyo and travels northward by bullet train, pausing to soak in the serene mountain springs of Unazuki Onsen, before exploring the art of shimmering Kanazawa gold leaf.

Paul explores the remote, thatched villages of Gokayama, through Niigata's rice paddies on a special sake train, to the washi paper mills of Echizen, and the ancient, spiritual waters of Lake Biwa.

Venice is under attack from climate change. Flooding is becoming more frequent. Can scientists and engineers find ways to protect this unique jewel of architecture and culture before it's too late?

Around 12,000 years ago, as the Ice Age finally thawed, humanity made a dramatic shift - abandoning nomadic life for permanent settlements.

Hannah Fry discovers why innovations in meat packing almost derailed the electric car revolution and how a breakthrough in camcorder batteries led to Elon Musk's electric empire.

Nick learns about Civil Rights activist Medgar Evers, and paddles on the river at sunset.

Paul departs from Tokyo and travels northward by bullet train, pausing to soak in the serene mountain springs of Unazuki Onsen, before exploring the art of shimmering Kanazawa gold leaf.

Paul explores the remote, thatched villages of Gokayama, through Niigata's rice paddies on a special sake train, to the washi paper mills of Echizen, and the ancient, spiritual waters of Lake Biwa.

Venice is under attack from climate change. Flooding is becoming more frequent. Can scientists and engineers find ways to protect this unique jewel of architecture and culture before it's too late?

Hannah Fry discovers why innovations in meat packing almost derailed the electric car revolution and how a breakthrough in camcorder batteries led to Elon Musk's electric empire.

Nick learns about Civil Rights activist Medgar Evers, and paddles on the river at sunset.

Venice is under attack from climate change. Flooding is becoming more frequent. Can scientists and engineers find ways to protect this unique jewel of architecture and culture before it's too late?

All life is driven by the need to breed. Yet for a few, the odds of success are overwhelmingly against them, so these have adopted the most extraordinary mating strategies of all.

Joanna starts her 2000 mile journey across Japan in Hokkaido.

In the first instalment Joanna explores the incredible islands of Japan, before jumping on board the Trans-Siberian Railway into Russia.

One of the several reinforced concrete highway overpasses constructed in the 1960s was Seoullo 7017. This deteriorating liability was transformed into an elevated green park by Dutch architects MVRDV.

Wild and unpredictable, the Scandinavian coast is a place of haunting beauty and dangerous extremes, home to feisty puffins, orcas, eagles, otters and intrepid base jumpers.

Joanna starts her 2000 mile journey across Japan in Hokkaido.

Paul departs from Tokyo and travels northward by bullet train, pausing to soak in the serene mountain springs of Unazuki Onsen, before exploring the art of shimmering Kanazawa gold leaf.

Paul explores the remote, thatched villages of Gokayama, through Niigata's rice paddies on a special sake train, to the washi paper mills of Echizen, and the ancient, spiritual waters of Lake Biwa.

One of the several reinforced concrete highway overpasses constructed in the 1960s was Seoullo 7017. This deteriorating liability was transformed into an elevated green park by Dutch architects MVRDV.

In the first instalment Joanna explores the incredible islands of Japan, before jumping on board the Trans-Siberian Railway into Russia.

Joanna starts her 2000 mile journey across Japan in Hokkaido.

Paul departs from Tokyo and travels northward by bullet train, pausing to soak in the serene mountain springs of Unazuki Onsen, before exploring the art of shimmering Kanazawa gold leaf.

Paul explores the remote, thatched villages of Gokayama, through Niigata's rice paddies on a special sake train, to the washi paper mills of Echizen, and the ancient, spiritual waters of Lake Biwa.

One of the several reinforced concrete highway overpasses constructed in the 1960s was Seoullo 7017. This deteriorating liability was transformed into an elevated green park by Dutch architects MVRDV.

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.

Wild and unpredictable, the Scandinavian coast is a place of haunting beauty and dangerous extremes, home to feisty puffins, orcas, eagles, otters and intrepid base jumpers.

Paul departs from Tokyo and travels northward by bullet train, pausing to soak in the serene mountain springs of Unazuki Onsen, before exploring the art of shimmering Kanazawa gold leaf.

Paul explores the remote, thatched villages of Gokayama, through Niigata's rice paddies on a special sake train, to the washi paper mills of Echizen, and the ancient, spiritual waters of Lake Biwa.

Professor Brian Cox explores the solar system's hidden realms, between and beyond the planets, where countless worlds lie hiding in the darkness.

Joanna catches a bullet train straight into the metropolitan sprawl of Tokyo, before heading to the ancient capital of Kyoto with its stunning temples and shrines.

Hannah Fry discovers why innovations in meat packing almost derailed the electric car revolution and how a breakthrough in camcorder batteries led to Elon Musk's electric empire.

Simon revisits the incredible characters he's met while travelling the globe.

Professor Brian Cox explores the solar system's hidden realms, between and beyond the planets, where countless worlds lie hiding in the darkness.

Paul departs from Tokyo and travels northward by bullet train, pausing to soak in the serene mountain springs of Unazuki Onsen, before exploring the art of shimmering Kanazawa gold leaf.

Paul explores the remote, thatched villages of Gokayama, through Niigata's rice paddies on a special sake train, to the washi paper mills of Echizen, and the ancient, spiritual waters of Lake Biwa.

Hannah Fry discovers why innovations in meat packing almost derailed the electric car revolution and how a breakthrough in camcorder batteries led to Elon Musk's electric empire.

Simon revisits the incredible characters he's met while travelling the globe.