BBC Earth Astro

Ben Fogle revisits Rauri on Rathlin Island, who left HR for off-grid life. They repaint Rauri's house and discuss his health struggles, and a daring journey he made to help those in need.

World-renowned survivalist Bear Grylls leads Zac Efron on a non-stop extreme survival journey into the Northeast Appalachian mountain range wilderness.

Patrick witnesses the annual migration of sea turtles in Costa Rica, as well as predatory jaguars on the hunt for prey.

Joanna continues her travels to Berlin. A sometimes dark history has given birth to a creative city with a thrilling atmosphere.

World-renowned survivalist Bear Grylls meets actor Ben Stiller on the rugged mountains of the Isle of Skye in Northern Scotland, to go on a once in a lifetime adventure.

Today, more than half of the world's primates are under threat of extinction. Meet the scientists making groundbreaking discoveries about this remarkable animal family.

West End star Joe McElderry joins Robson on a two-day trip into the wilds of Northumberland to relax the mind and recharge the body.

BMX world champion and Olympic silver medallist Kieran Reilly joins Robson for a weekend to relax, recharge and reset.

Devastating earthquakes hit Turkey and Syria, toppling buildings and trapping residents.

World-renowned survivalist Bear Grylls meets actor Ben Stiller on the rugged mountains of the Isle of Skye in Northern Scotland, to go on a once in a lifetime adventure.

Today, more than half of the world's primates are under threat of extinction. Meet the scientists making groundbreaking discoveries about this remarkable animal family.