Professor Jim Al-Khalili tells the story of how we went from thinking we were close to a complete understanding of the universe to realising we had seen almost none of it. Show more

Professor Jim Al-Khalili shows how mathematicians and scientists such as Euclid, Galileo and Ole Roemer have used light to reveal almost everything we know about the universe. Show more

Marcus du Sautoy reveals a hidden numerical code that underpins all nature. He reveals how significant numbers appear throughout the natural world and govern the planet. Show more

Marcus du Sautoy reveals a hidden numerical code that underpins all nature. He uncovers the patterns that explain the shape of the world around us. Show more

Marcus du Sautoy contines exploring the numerical code that underpins nature. He discovers what the code can say about the future, starting with the lunar eclipse. Show more

Cinematic widescreen version. Horizon investigates unusual space signals, with exclusive access to researchers at the Green Bank Telescope searching for signals from Tabby's Star. Show more

When disaster strikes who lives and who dies is not purely a matter of luck - Horizon has gathered a team of experts to produce the ultimate guide to disaster survival. Show more

David Baddiel sets out to answer one of the greatest questions a parent can ask: how best to educate your child. Along the way he uncovers some unconventional approaches. Show more

A few weeks ago, the National Health Service was hit by a devastating cyber attack - Horizon tells the inside story of one of the most challenging days in the history of the NHS. Show more

Professor Iain Stewart shows that where the south of Eurasia is today there was once an ocean and how, in 250 million years, all of the continents will collide together Show more

Scientists now believe black holes could hold the key to answering the ultimate question: what was there before the big bang? However, researching them is next to impossible. Show more

Horizon investigates unusual space signals, including the Lorimer Burst, and has exclusive access to researchers at the Green Bank Telescope searching for signals from Tabby's Star. Show more

Professor Brian Cox reveals how Earth's beauty is created by just a handful of forces. He follows the planet's epic journey through space. Show more

Professor Brian Cox reveals how Earth's beauty is created by just a handful of forces. In this episode Brian explains the science behind the colours of the planet. Show more

Professor Brian Cox explores the laws of the universe. In this episode, Brian looks at the nature of time and its role in creating both the universe and ourselves. Show more

In the world's most volcanic region, South East Asia, Prof Brian Cox explores the thin line that separates the living from the dead, posing the enduring question: what is life? Show more

Professor Brian Cox explores mankind's place in the universe. He looks at how we came to understand that we are not at the centre of the universe. Show more

Professor Brian Cox explores our place in the universe. He charts the story of humans from apes to the birth of civilisation to our ascent into space. Show more

Series exploring topical scientific issues examines the story of infinity - older than time, bigger than the universe and stranger than fiction. Show more

The rocky planets Mercury, Venus, Earth, and Mars were born at the same time from the same material - yet have lived radically different lives. What immense forces are at play? Show more