Although its existence had been theorized for decades, the Higgs boson was finally observed to exist in 2012 at the Large Hadron Collider (LHC) at CERN. Since then, it has continued to be heavily studied at the LHC. Now, a new study from the researchers at CERN combines the last two runs of ATLAS—one of the two general-purpose detectors at the LHC—to lay out evidence that the Higgs boson can decay into a muon–antimuon pair.