CHARGE! Why does gravity rule?

Gravity rules the world we see because the electric charges in atoms cancel out. If they hadn't, no planets, stars, or galaxies would have formed. But why is matter neutral?

Frank Close guides us into the subatomic world, with its exotic particles, quantum effects, and powerful forces, to explore one of the deepest puzzles of physics.

Professor Frank Close

Frank Close OBE FRS is Professor Emeritus of Theoretical Physics at Oxford University and Fellow of Exeter College, Oxford. He is a particle physicist and author of several popular science books most recently the award winning "Elusive" - the story of the elusive Higgs boson and its equally elusive inspiration, Peter Higgs.