Brian Cox and Robin Ince are joined by mathematician Marcus Du Sautoy, science journalist Adam Rutherford and comic book legend Alan Moore to discuss why symmetry seems such a pervasive phenomenon throughout our universe, and possibly beyond. The world turns on symmetry -- from the spin of subatomic particles to the structure of the natural world, through to the molecules that make up life itself. They'll be asking why symmetry seems so ubiquitous and whether the key to Brian's large female fanbase is down to his more than usually symmetrical face. Producer: Alexandra Feachem.