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. Part 1 Part 2

This episode tackles world-changing discoveries such as radioactivity, the Atom Bomb, and the Big Bang, and tried to answer the biggest questions of all - why are we here and how were we made? Part 1 Part 3

Professor Jim Al-Khalili takes us from the discovery of the atom to the development of quantum mechanics. One of the best science series in the past decade. The Atom and Prof. Al-Khalili are this decade's counterpart to Cosmos and Sagan. A brilliant introduction, history, and passion of the developments in physics over the past 100 years. ...