Ben Silburn presents the series that explores the ends of the universe, the centre of the Earth and the depths of the human body. This week he examines a tiny subatomic particle called a proton as it races around an accelerator deep below the ground. Its journey ends in a violent collision - the resulting debris may help to provide us with the fuel of the future as well as answering questions about how the universe was created. E-Mail: [email address removed]
