Professor Jeff Forshaw explains Higgs boson
4 July 2012 Last updated at 07:50 BST
As scientists around the world discover the results from one of the biggest experiments in history, Professor Jeff Forshaw talks to Newsround.
Physicists have been working for months in an underground laboratory in Europe to find the Higgs boson - a particle that would explain how the universe works.
Professor Jeff Forshaw explains to Joe how the Higgs boson is like cosmic teacle!