From CERN https://twitter.com/CERN on Twitter: Low-intensity test collisions are happening today in the LHC at injection energy - 450 GeV per beam. It is an important step in resuming physics at CERN next year. Find out more about #WhatsUpLHC: https://home.cern/science/accelerators/large-hadron-collider https://twitter.com/CERN/status/1452991931257065478/photo/1 https://chirp.cooleysekula.net/attachment/73028