The first of three programmes in which nuclear physicist Professor Jim Al-Khalili tells the story of the greatest scientific discovery ever - that everything is made of atoms.

Professor Al-Khalili takes us from the discovery of the atom to the development of quantum mechanics

This episode tackles world-changing discoveries such as radioactivity, the Atom Bomb and the Big Bang, and tries to answer the biggest questions of all - why are we here and how were we made?

Al-Khalili discovers that there might be parallel universes in which different versions of us exist, and finds out that empty space isn’t empty at all, but seething with activity

The story of quantum entanglement, perhaps the strangest concept in science. Mind-bending concepts and brilliant experiments lead us to a profound new understanding of reality.

The world's oceans claim on average one ship a week, often in mysterious circumstances. With little evidence to go on, investigators usually point at human error or poor maintenance but an alarming series of disappearances and near-sinkings, including world-class vessels with unblemished track records, has prompted the search for a more sinister cause and renewed belief in a maritime myth: the wall of water

Comedian Ben Miller returns to his roots as a physicist to try to answer a deceptively simple question: what is one degree of temperature?

Professor of physics Jim Al-Khalili investigates the most accurate and yet perplexing scientific theory ever - quantum physics.

Jim Al-Khalili investigates whether quantum physics might solve mysteries in biology.

Theoretical physicist and futurist Michio Kaku shows how quantum physics is giving mankind the almost godlike power to manipulate the fundamental building blocks of matter. Science fiction ideas like the space elevator, teleportation, invisibility cloaks, or nanosized molecular machines might soon become a reality. But will we use our unprecedented scientific mastery wisely?