The massive doors of the ALICE experiment magnet have been just reopened to allow scientists and technicians to work on the detector upgrade. The doors are 16 metres tall and weight 350 tonnes each. This delicate operation was performed in various phases over one week in December. | CERN

What is ALICE? The ALICE Experiment detects quark-gluon plasma, a state of matter thought to have formed just after the big bang. ALICE is designed to study the physics of strongly interacting matter at extreme energy densities. #BigBang Watch more videos: http://cern.ch/go/b6mQ Video credit: RADIO TELEVISION SUISSE (RTS) - ARTE Future and CERN | CERN

The ALICE experiment at CERN is about to achieved a major milestone with the completion of the Time Projection Chamber (TPC) upgrade, after many years of intense R&D, construction and assembly. At the end of 2020, all the services will be connected and the full, upgraded TPC will be operated and commissioned together with all other detectors in the experiment. The real excitement will be when the first post-LS2 collisions from the LHC are delivered. Relive the action in 360° and 6K. | CERN

Get ready with… the ALICE experiment Leading up to this year’s #HeavyIon run, the physicists at the ALICE experiment extensively prepared the detector – and themselves – for lead ion collisions. Learn how the ALICE run coordinators Meike Charlotte Danish, Andrea Ferrero and Robert Munzer get ready for the lead–lead collision data-taking period at the #LHC. Find out more about how this year’s run is progressing: https://home.cern/news/news/accelerators/accelerator-report-lead-ions-heart-accelerat