CERN celebrated the arrival of the first cryo-assembly for the HL-LHC with a ceremony on Dec. 18. From left: Oliver Brüning, CERN, HL-LHC project leader; Mike Lamont, CERN, director for accelerators and technology; and Giorgio Apollinari, Fermilab, head of the U.S. HL-LHC Accelerator Upgrade Project.