The surprising story of the hidden powerhouse behind the globalised world - the diesel engine, a 19th-century invention that has become indispensable to the 21st century.

Documentary which combines astonishing footage from Saigon in April 1975 with contemporary reflections from those who were there. During the chaotic final weeks of the Vietnam War, the North Vietnamese Army closes in on Saigon as the panicked South Vietnamese people desperately attempt to escape.

Hosted by Mark Radcliffe and recorded at the British Library, this year's John Peel lecture is delivered by legendary music guru and pioneer Brian Eno. The man behind some of the most memorable sounds in music history, and whose passion to innovate and experiment has kept him at the forefront of music and sound production, speaks about the ecology of culture.

Filmed over 5 years, A Syrian Love Story charts an incredible odyssey to political freedom. For Raghda and Amer, it is a journey of hope, dreams and despair: for the revolution, their homeland and each other.

Particle physicist Professor Brian Cox asks, 'What time is it?' It's a simple question and it sounds like it has a simple answer. But do we really know what it is that we're asking?

Forget the Big Bang. The real moment of creation was the moment of first light, the moment the first stars were born. Horizon tells the scientific version of the story of Genesis.

Rome was the world's first ancient megacity. At a time when few towns could number more than 10,000 inhabitants, more than a million lived in Rome. But in a world without modern technology, how on earth did the Romans do it?

In the opening episode of the series, Professor Andrew Wallace-Hadrill takes us on a journey across stunning locations in Greece and Italy to find out how Athens gave birth to the idea of a city run by free citizens 2,500 years ago. Every aspect of daily life from defence to waste disposal was controlled not by a king, but by the Athenians themselves.

Until very recently the whole idea of the multiverse was dismissed as fantasy. Horizon asks whether multiple universes exist and, if so, which one we are actually in.

A look at people living with OCD, the therapy available and what neuroscience can offer.

Horizon reveals how new archaeological discoveries are painting a different picture of the very first native Britons. For centuries it's been thought that these hunter-gatherers lived a brutal, hand-to-mouth existence. But extraordinary new evidence has forced scientists to rethink who these people were, where they came from and what impact they had on our early history.

In 2014, the International Space Station had to move three times to avoid lethal chunks of space debris and there is an increasing problem of satellites mysteriously breaking down. With first-hand accounts from astronauts and experts, Horizon reveals the scale of the problem of space junk.

Michael Mosley puts himself through a battery of health tests available to people who feel perfectly well. From an expensive heart scan to a new national screening procedure to detect the earliest signs of bowel cancer, Mosley sets out to discover which if any of the tests are worth doing.

Professor Richard Fortey delves into the fascinating and normally hidden kingdom of fungi. From their spectacular birth, through their secretive underground life to their final explosive death, Richard reveals a remarkable world that few of us understand or even realise exists - yet all life on Earth depends on it.

2015 marks the 40th anniversary of tennis legend Arthur Ashe lifting the Wimbledon men's singles title. From boyhood in segregated America to becoming one of the world's opinion-formers, Ashe's story is told poignantly by his brother Johnnie, along with friends Stan Smith, Donald Dell and rivals like Ilie Nastase.

Lyse Doucet follows the lives of children on both sides of the conflict in Gaza. Children in Gaza and Israel have lived through three major conflicts in six years.

Professor Mark Miodownik concludes his odyssey of the stuff of modern life. This time he looks at how materials have enabled us to indulge our curiosity about the world around us.

Mark Miodownik reveals the amazing stories behind everyday objects of desire and how they are miraculously transformed from raw materials into the very stuff of the modern world.

Since he was a teenager, Dara O Briain has been fascinated with professor Stephen Hawking, the world's most celebrated scientist. In this special film, Dara spends time with his boyhood hero as he attends the world premiere of The Theory of Everything, the movie made about his life, and then at Professor Hawking's home and place of work in Cambridge.

The film is an unvarnished account of the scientists who dared to discover the secret of life - told through fascinating and revealing archive - in their own words.

Actor Cillian Murphy, who played the lead role in Ken Loach's Palme d'Or-winning film The Wind That Shakes the Barley, talks to the director at the BFI Southbank about a prolific career dedicated to documenting social and political injustice, the importance of artistic collaboration, the often-overlooked humour in Loach's films, and the impact working with Loach had on his own approach to acting.

Panorama investigates the global advance of antibiotic-resistant superbugs and the threat they pose to modern medicine and millions of patients worldwide. Reporter Fergus Walsh travels to India and finds restricted, life-saving antibiotics on sale without prescription and talks to NHS patients whose recovery depends on them.

Cinematic documentary examining the rise to prominence and global sporting superstardom of six supremely talented young Manchester United footballers.

Of all the wonders of the human body, there's one more mysterious than any other. Blood: five precious litres that keep us alive. Yet how much do we really know about this sticky red substance and its mysterious, life-giving force?

Horizon travels to the South Pole to tell the inside story of the greatest scientific quest of our time.

The Queens of Soul presents the critically acclaimed and influential female singers who, decade by decade, changed the world one note at a time.

In this programme, Michael Mosley delves into the BBC archives to chart scientists' progress as they probed the mind of the murderer to try to understand why people kill, and to find out whether by understanding murder we can prevent it.

It was 1952, and polio gripped the world in fear. There was no known cause, no cure and no help in sight for parents desperate to protect their children. Across the ocean, eager to beat the potentially fatal condition, polio-afflicted President Roosevelt inspired the American public to send in their dimes to fund research.

Martha Lane Fox, founder of lastminute.com, digital pioneer, baroness and chancellor of the Open University, delivers this year's Richard Dimbleby Lecture. She will challenge us all - leaders, legislators, and users - to understand the internet more deeply and to be curious and critical in our digital lives in order to tackle the most complex issues facing our society.

At the time of his death in April 1973, aged 91, Pablo Picasso had become one of the 20th century's most influential and prolific artists. Picasso has been painted as many men - genius, womaniser, egomaniac.