On July 4, 2012 the Atlas and CMS Experiments at LHC announced that they had observed a particle that may be the Higgs boson. The LHC or Large Hadron Collider is located in a tunnel 27 kilometres (17 mi) in circumference and as deep as 175 meters (574 ft) beneath the Franco-Swiss border and is the world’s largest and highest-energy particle accelerator.
You can find videos and documents related to the potential discovery of the Higgs boson and its significance on the LHC France site: http://lhc-france.fr/higgs.
Some recommended videos (in French) are below.
What is the Higgs boson? How do scientists look for it? What would its discovery mean?

La chasse au boson de Higgs. © CNRS Images
Bruno Mansoulié, Atlas physicist, explains the latest results:
François Englert, theoretical physicist and one of the developers of the Brout-Englert-Higgs mechanism shares his thoughts on the latest results from the LHC: