Six years ago two of the experiments at CERN independently detected and observed the Higgs boson - the last missing elementary particle of the Standard Model. The next step was to determine the properties of this newly discovered particle.
CMS detector (Image: CERN)
The newest data unambiguously demonstrates the interaction of the Higgs boson and top quarks, which are the heaviest known subatomic particles. The theoretical predictions were correct and the Higgs boson acts like we thought they "should". This is solidifying the understanding of where mass comes from, which is a fundamental question.