CERN, The European Organization for Nuclear Research made a ground-breaking announcement that Scientists at the Large Hadron Collider (LHC) have discovered a new sub-atomic particle consistent with the long-sought Higgs Boson. Known as the elusive "God particle", as it gives mass to all other particles in the universe.

The search for the Higgs Boson has been going on for decades at a cost of billions of pounds. Scientists have now announced they have seen the best evidence yet that it exists.

Here Professor John Ellis, explained what it is.

"What it is? It's the last piece in the 'standard model.' The Standard Model describes all the matter that we can see in the universe, you, me, the planet, the stars, galaxies, all that matter is described by the standard model. That description only makes sense if a Higgs Boson exists or something very similar to it."

Here is the large Hadron Collider in the CERN underground lab which was used to hunt the Higgs Boson since 1984. Professor Ellis then explains just what a ground-breaking discovery this is.

"So it's very exciting that finally, after so many years of looking and waiting and searching, we may finally discover the missing link that really makes our description of the matter in the universe sensible. Maybe it's the Higgs Boson, maybe it's not Higgs Boson, but finally, I think, we gonna start seeing the boson."

Written and presented by Ann Salter