A new run of the CLOUD experiment examines the direct effect of cosmic rays on clouds

The second ProtoDUNE detector at CERN saw its first particle tracks in August

The final touches are being put to the new test facility to ready it for operation

The CMS muon system is being upgraded to help track muons with ever-higher precision

The assembly of the new muon small wheels and the upgrades on the electronics and trigger systems are progressing well

During LS2, CMS will install 144 additional muon detector modules specially designed to detect particles produced in the very forward region

During the long shutdown of CERN’s accelerators, the ALICE experiment at the LHC is removing and refurbishing or replacing the majority of its detectors

The experiment, which will complement existing searches for dark matter at the LHC, will be operational in 2021