ALICE detector module extraction at CERN. ALICE (A Large Ion Collider Experiment) is a detector built around the Large Hadron Collider (LHC) at CERN (the European particle physics laboratory) near Geneva, Switzerland. The LHC, the world's largest and most powerful particle collider, began operating in 2008. For ALICE, beams of ions are accelerated to collide head-on. The collision energy creates new particles that will decay into other particles. The LHC energies have allowed study of exotic material like quark-gluon plasma, a form of quark matter. Here, a module (TRD Module 6) is being extracted at the start of the planned 2-year shutdown called Long Shutdown 2 (LS2). During such shutdowns, the LHC and its detectors are inspected, maintained and upgraded. The Transition Radiation Detector (TRD) is the main electron detector in ALICE. Photographed on 19 December 2018.