Simon Singh looks at the stories behind the discovery of five of the universe's most significant subatomic particles.
5) The Next Particle.
The "sparticle" - a super symmetric partner to all the known particles could be the answer to uniting all the known particles and their interactions under one grand theoretical pattern of activity.
But how do researchers know where to look for such phenomena and how do they know if they find them? A whole repertoire of particles could be detected with the new Large Hadron Collider at CERN in Geneva.
Simon Singh concludes his series looking at how the discovery of super symmetric particles could rewrite the physics books and help in completing physics' Grand Theory of Everything.
Producer Adrian Washbourne.
A symmetric partner to all the known particles could provide the key to understanding them