1. THE CLASH OF THE TITANS
Professor Al-Khalili takes us from the discovery of the atom to the development of quantum mechanics.
2. THE KEY TO THE COSMOS
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?
3. THE ILLUSION OF REALITY
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.