From ATLASexperiment https://twitter.com/ATLASexperiment on Twitter: Check out these beautiful new event displays! On 29 October 2021, the ATLAS Experiment at @CERN recorded low-intensity test collisions. The LHC accelerated proton beams to 'injection energy' 450 GeV per beam in preparation for its restart next year. https://twitter.com/ATLASexperiment/status/1455227573093519360/photo/1 https://chirp.cooleysekula.net/attachment/73072