The scientists who predicted the existence of the Higgs boson particle have won the Nobel Prize for physics.
Britain's Peter Higgs and Francois Englert of Belgium carried out their original work half a century ago.
The particle was finally detected last year at the CERN research centre's underground particle-smasher near Geneva.
The discovery, which explains how elementary matter attained the mass to form stars and planets, was lauded as one of the most important in physics.
