As President Trump takes office, Katty Kay in Washington and Christian Fraser in London report on the events that are shaping our world.
Writer and birdwatcher Tim Dee walks the flatlands of The Wash on a quest to capture the elusive sound of 'pure' wind. A poetic, mesmeric film from film-maker Richard Alwyn. Show more
Richard Fortey investigates why islands are laboratories of evolution. On Hawaii he finds honeycreeper birds, carnivorous caterpillars and silversword plants. Show more
In India, leopards and people are colliding. For the leopards, what does it take to survive in a world of over a billion people? Show more
Focusing on the Middle East, one of the world's worst affected areas, this film looks at why dust storms happen, how they affect our health and what we can do about them. Show more
Dr Kevin Fong guides us through an ethical and scientific minefield as he considers whether sending men to Mars is worth the risk and if it is really achievable. Show more
Margaret Mountford goes in search of the truth behind Sappho, the most controversial writer of the ancient world and the first authentic woman's voice in western history. Show more
Drama documentary. Duke William leads his vast invasion fleet across the Channel to face King Harold. The two armies meet at battle in Sussex on 14 October 1066. Show more
Richard Fortey investigates why islands are laboratories of evolution. On Hawaii he finds honeycreeper birds, carnivorous caterpillars and silversword plants. Show more
Celebrating the 50th anniversary of the Forth Road Bridge, charting the memories of those who built it and those who operated the Forth ferries that ran until the bridge opened. Show more