Tuesday, June 24
(Undated) -- Physicists who have spent the past two years checking their work are very excited today. The particle discovered by the Large Hadron Collider in the summer of 2012 has been confirmed as the long-theorized Higgs Boson. The subatomic particle named for Nobel laureate Peter Higgs explains everything physicists know about how the universe works. At least one physicist calls the discovery and confirmation of the Higgs Boson "the biggest scientific discovery of the 21st Century. Period."