July 4, 2012
Francois Englert, left, and Peter Higgs leave after they answer journalist's questions at the European Organization for Nuclear Research (CERN) in Meyrin, Switzerland, near Geneva. The physics theorists postulated the existence of subatomic particles that play a crucial role in the fabric of the universe. The existence of the Higgs particle was confirmed by experiments at CERN’s Large Hadron Collider, which was announced on July 4, 2012.
Keystone via AP