What Happened Before the Beginning?

Following a review of the discovery and evidence for the Big Bang this program examines the progress of scientists trying to determine what went...

The Illusion of Reality

Al-Khalili explores how studying the atom forced us to rethink the nature of reality itself, encountering ideas that seem like they are from science...

Atom: The Key to the Cosmos

The second in Professor Jim Al-Khalili's three-part documentary about the basic building block of our universe, the atom. He shows how, in our quest...

Atom: Clash of The Titans

The story of the discovery that everything is made from atoms, one of the greatest scientific breakthroughs in history, and the brilliant minds behind...

What is the Higgs Boson?

Scientists behind Sixty Symbols (Ed Copeland, Roger Bowley and Tony Padilla from the University of Nottingham) are doing their best to answer what actually...

The Secret Life of Chaos

Chaos theory has a bad name, conjuring up images of unpredictable weather, economic crashes and science gone wrong. But there is a fascinating and...

Atom Smasher

Sean faces one of his most spectacular fixes to date as he repairs a giant magnet at the Large Hadron Collider with success paving...

How small is the Universe

Horizon plunges down the biggest rabbit-hole in history in search of the smallest thing in the Universe. It is a journey where things don't...

EP 4/4 Time – Cosmictime

In this four-programme series, string theory pioneer Michio Kaku goes on an extraordinary exploration of the world in search of time. He discovers our...

Pure Science Specials: Magnetic Storm

There is a region of our planet that no human being has ever visited, no one has ever seen this place, yet what happens...