Seasons & episodes

In this documentary, Horizon reports on a skeleton was found 50 years ago in Southern Italy. The bone structure suggests the owner was an ancient athlete.

A team of doctors conducts potentially life-saving experiments in Horizon's 'death zone' This two-part special follows a team of doctors conducting a series of groundbreaking experiments as they climb Everest, the world's highest peak. From their laboratory tents, pitched in -25&degC conditions, the experts use their own bodies for medical tests. They push themselves to the limit to better understand the human body's behaviour in a low-oxygen environment. The team hopes their work will lead to new, life-saving treatments for intensive care patients suffering from hypoxia, a shortage of oxygen in the body.

A team of doctors conducts potentially life-saving experiments in Horizon's 'death zone' This two-part special follows a team of doctors conducting a series of groundbreaking experiments as they climb Everest, the world's highest peak. From their laboratory tents, pitched in -25&degC conditions, the experts use their own bodies for medical tests. They push themselves to the limit to better understand the human body's behaviour in a low-oxygen environment. The team hopes their work will lead to new, life-saving treatments for intensive care patients suffering from hypoxia, a shortage of oxygen in the body.

Professor Jim Al Khalili delves into over 50 years of the BBC science archive to tell the story behind the emergence of one of the greatest theories of modern science, the Big Bang. The remarkable idea that our universe simply began from nothing has not always been accepted with the conviction it is today and, from fiercely disputed leftfield beginnings, took the best part of the 20th century to emerge as the triumphant explanation of how the universe began. Using curious horn-shaped antennas, U-2 spy planes, satellites and particle accelerators, scientists have slowly pieced together the cosmological jigsaw, and this documentary charts the overwhelming evidence for a universe created by a Big Bang.

First of a two-part special. Ten volunteers have come together for an extraordinary test. Five are 'normal' and the other five have been officially diagnosed as mentally ill. Horizon asks if you can tell who is who, and considers where the line between sanity and madness lies.

S0 · E54How Mad Are You? (2) 2008-11-18 · 60 min＋

Second part of the special documentary considering where the line between sanity and madness lies as ten volunteers come together for an extraordinary test. With five 'normal' volunteers and five who have been officially diagnosed as mentally ill, Horizon asks if you can tell who is who.

Professor Brian Cox takes a look through nearly 50 years of BBC archive at the story of man's relationship with the Moon.

In the wake of the swine flu outbreak, virologist Dr Mike Leahy goesw back over 50 years of BBC archives to explore the history of pandemics: waves of infectious diseases caused by bacteria, viruses or parasites. Inspired primarily by the Horizon back catalogue, he works his way through the diseases that have been tackled head-on through the 20th Century: polio, malaria, smallpox, AIDS, and up to the present day with SARS and the H5N1 bird-flu virus. Each pandemic episode tells us something about the world and our place within it. In his trip through the ages and the archives, Dr Leahy charts science's ongoing battle with nature and questions which one is winning. He makes a reasonable fist of the exercise, but is somewhat up against it as his source material can be patchy - first triumphant about man's successes and then defeatist when the previous triumph didn't work out quite as planned, etc.

The intriguing possibility of life on Mars has fuelled man's quest to visit the Red Planet. Drawing on 45 years of Horizon archive, space expert Dr Kevin Fong presents a documentary on Earth's near neighbour. Man's extraordinary attempts to reach Mars have pushed technological boundaries past their limit and raised the tantalising prospect of establishing human colonies beyond our own planet. While the moon lies 240,000 miles away, Mars is at a distance of 50 million miles. Reaching the moon takes three days, but to land on Mars would take nearly eight months, and only two thirds of the missions to Mars have made it. The BBC has been there to analyse the highs and lows - including the ill-fated British attempt, the Beagle. Horizon has explored how scientists believe the only way to truly understand Mars is to send people there. If and when we do, it will be the most challenging trip humanity has ever undertaken.

S0 · E58How Many People Can Live on Planet Earth? 2009-12-09 · 60 min＋

In a Horizon special, naturalist Sir David Attenborough investigates whether the world is heading for a population crisis. In his lengthy career, Sir David has watched the human population more than double from 2.5 billion in 1950 to nearly seven billion. He reflects on the profound effects of this rapid growth, both on humans and the environment. While much of the projected growth in human population is likely to come from the developing world, it is the lifestyle enjoyed by many in the West that has the most impact on the planet. Some experts claim that in the UK consumers use as much as two and a half times their fair share of Earth's resources. Sir David examines whether it is the duty of individuals to commit not only to smaller families, but to change the way they live for the sake of humanity and planet Earth.

Dr Susan Jebb takes a look through nearly fifty years of amazing BBC archive of mankind's relationship with what we eat, charting the shift from the malnutrition of the past to today's obesity epidemic. This is the story of our attempt to control nature through the wholesale industrialisation of food production in our search for enough to eat, and the consequences of that massive shift in our diet on the shape of our bodies, and the diseases that kill us. From the BBC's original eccentric scientist Magnus Pyke comparing the virtues of artificial additives to a Beethoven sonata, to the tragic side effects of diet pills, Horizon and the BBC have covered it all. On her journey through the decades, Dr Jebb explores how scientists have played a crucial role both in transforming the way our food is produced, but also in attempting to understand the biological mechanisms that determine why it is that some of us have become so large.

As the Pope ends his visit to Britain, historian Dr Thomas Dixon delves into the BBC's archive to explore the troubled relationship between religion and science. From the creationists of America to the physicists of the Large Hadron Collider, he traces the expansion of scientific knowledge and asks whether there is still room for God in the modern world.

Dallas Campbell delves into the Horizon archive to discover how our understanding of intelligence has transformed over the last century. From early caveman thinkers to computers doing the thinking for us, he discovers the best ways of testing how clever we are - and enhancing it.

Professor Iain Stewart examines the powerful geological forces that unleashed the devastating Japanese earthquake, and explores how the release of this power of the planet brought Japan to the brink of a nuclear meltdown. He follows moment by moment how the earthquake was generated under the Pacific Ocean, travelled to the Japanese mainland, and the rare conditions that unleashed a tsunami. He also reveals the latest science behind earthquakes - from why we can't predict them, to what causes some of them to reach such power. Iain shows why our civilisation has developed such a dangerous relationship with earthquakes, and why millions of us continue to live in earthquake zones across the world.

In 2011, after more than 30 years of service, America's space shuttle will take to the skies for the last time. Its story has been characterised by incredible triumphs, but blighted by devastating tragedies - and the BBC and Horizon have chronicled every step of its career. This unique and poignant Horizon Guide brings together coverage from three decades of programmes to present a biography of the shuttle and to ask what its legacy will be. Will it be remembered as an impressive chapter in human space exploration, or as a fatally flawed white elephant?

S0 · E64The End of the World? A Horizon Guide to Armageddon 2011-05-12 · 60 min＋

Our understanding of the world around us is better now than ever before. But are we any closer to knowing how its all going to end? Dallas Campbell delves into the Horizon archive to discover how scientists have tried to predict an impending apocalypse - from natural disaster to killer disease to asteroid impact - and to ask: when Armageddon arrives, will science be able to save us?

Child psychologist Laverne Antrobus delves into the Horizon archive to find out how science has shaped our approach to parenting and education over the last fifty years. From lessons in motherly love to tough discipline to bribery tactics, she asks what's the best approach when it comes to bringing up children. Laverne also explores how extreme behaviour can sometimes be explained by underlying neurological problems and discovers whether children learn best in a more child-centred environment.

Dallas Campbell explores how mankind's understanding of dinosaurs has developed since the 1970s. He reveals how technological advances led to scientists revising their theories about how the creatures might have lived, as well as gaining new insights into the reasons for their extinction. The presenter also explores the genetic links between modern birds and the prehistoric lizards.

S0 · E67The Hunt for Higgs: A Horizon Special 2012-01-09 · 60 min＋

Horizon goes behind the scenes at CERN to follow one of the most epic and expensive scientific quests of all time: the search for the Higgs particle, believed to give mass to everything in our universe. However, the hunt for Higgs is part of a much grander search for how the universe works. It promises to help answer questions like why we exist and is a vital part of a Grand Unified Theory of nature. At the heart of the pursuit of the elusive particle is the same feature that makes snowflakes beautiful and human faces attractive: the simple and enchanting idea of symmetry.

Dallas Campbell looks back through the Horizon archives to find out what science can tell us about our best friend the dog, and whether new thinking should change the way we treat them. From investigating the domestic dog's wild wolf origins to discovering the remarkable impact that humans have had on canine evolution, Dallas explores why our bond with dogs is so strong and how we can best use that to manage them.

Marcus Du Sautoy wants to find out how close we are to creating machines that can think like us: robots or computers that have artificial intelligence. His journey takes him to a strange and bizarre world where AI is now taking shape. Marcus meets two robots who are developing their own private language, and attempts to communicate to them. He discovers how a super computer beat humans at one of the toughest quiz shows on the planet, Jeopardy. And finds out if machines can have creativity and intuition like us. Marcus is worried that if machines can think like us, then he will be out of business. But his conclusion is that AI machines may surprise us with their own distinct way of thinking.

Engineer Jem Stansfield looks back through the Horizon archives to find out how scientists have come to understand and manipulate the materials that built the modern world. Whether it is uncovering new materials or finding fresh uses for those man has known about for centuries, each breakthrough offers a tantalising glimpse of the holy grail of materials science - a substance that is cheap to produce and has the potential to change the world. Jem explores how a series of extraordinary advances has done just that - from superconductors to the silicon revolution.

Kevin Fong looks back through 40 years of Horizon archives to explore what science has revealed about methods of perception. He discovers why babies use touch more than any other sense, how vision can easily be tricked, and the ways technological advancements are getting closer to being able to replace human faculties if they fail.

Is there any way to slow or even prevent the ravages of time? Veteran presenter Johnny Ball looks back over the 45 years that Horizon - and he - have been on air to find out what science has learned about how and why we grow old. Charting developments from macabre early claims of rejuvenation to the latest cutting-edge breakthroughs, Johnny discovers the sense of a personal mission that drives many scientists and asks whether we are really any closer to achieving the dream of immortality.