From ATLASexperiment https://twitter.com/ATLASexperiment on Twitter: Happy #Higgs Discovery Day! Seven years ago today, ATLAS and @CMSexperiment at CERN announced the discovery of the Higgs boson. Learn more about the discovery and study of this key particle: https://atlas.cern/updates/atlas-feature/higgs-boson https://twitter.com/ATLASexperiment/status/1146719871947988992/photo/1 https://chirp.cooleysekula.net/attachment/59039