Higgs: The invention and discovery of the 'God Particle'

The hunt for the Higgs particle has involved the biggest, most expensive experiment ever. So what is this particle called the Higgs boson? Why does it matter so much? What does this new particle tell us about the Universe? And was finding it really worth all the effort? Here, Jim Baggott explains the science behind the discovery, looking at how the concept of a Higgs field was invented and its implications on our understanding of all mass in the Universe.

Image: ATLAS Experiment/2012 CERN