Inside every atom of everything there is stuff.
In order for all of that stuff to be held together and attracted to each other, and for the matter it is part of to have any mass, it needs a heavy particle.
That heavy particle is the Higgs boson, or god particle.
For about half a century it has been known about and people have been trying to prove it exists. It is also a big part of the big bang theory.
Well today scientist at the gay hardon collider confirmed that they have indeed discovered a particle more than 130 times heavier than the proton in the centre of every atom. They carried out their experiments well enough to be able to say that there is only a 1 in 2 million chance that they are wrong.