It seems that scientists at the Cern institute in France have discovered what appears to be the foot print of the Higgs boson, which is that particle that gives mass to electrons, protons, etc. This has been an unknown for, well, for a long while. This discovery doesn't actually chart the higgs boson, but it does reveal the shadow of it.
Rosen compared the results that scientists
are preparing to announce Wednesday to finding the fossilized imprint of
a dinosaur: "You see the footprints and the shadow of the object, but
you don't actually see it."