The biggest science story of our time, "Massive" spans four decades weaving together the personal stories and intense rivalry behind the search for the 'God' particle or Higgs boson - the particle that gives mass (or weight) to all things. A story of grand ambition, intense trans-Atlantic competition, clashing egos and occasionally spectacular failures, this is the first single historical narrative that brings together the science, culture and politics in an accessible way for the general reader. No other author has had such unprecedented access to the work and both the public and private life of theoretical physicist Professor Peter Higgs, the scientist after whom the particle is named. For scientists, to find the God particle is finally to understand the origin of mass. And until now, the story of their search for it has never been told.