Hundreds of people were hard at work during the year-end technical stop as all the accelerators underwent maintenance and upgrade operations

2015: the year that saw the restart of collisions at the world’s largest particle accelerator and the return of the particle hunters to their lookouts

The two general-purpose LHC experiments have unveiled analyses of data collected in 2015 from proton collisions at an energy of 13 TeV

The new HIE-ISOLDE accelerator is up and running, increasing the beam energy of ISOLDE, CERN’s nuclear physics facility

For European Researchers’ night, CERN organised “POPscience” at a local shopping centre

The astroparticle experiment tracks the Sun morning and evening to search for particles of dark matter and dark energy

A superconducting dipole magnet model for the High-Luminosity LHC project has exceeded previously obtained performance levels

After a week of preparations for operation at higher intensity, physics data collection has resumed at the LHC

One week of LHC operation is being devoted to scrubbing the beam pipes to eliminate electron clouds, which can destabilise the beam

The first planned technical stop of the LHC starts on Monday, with five days of maintenance work scheduled for the accelerator and its experiments

Next week, the LHC experiments will start taking data for the LHC's second run. Find out how they used the long shutdown to upgrade their detectors

Watch 11 physicists from the LHC experiments ALICE, ATLAS, CMS and LHCb explain what they hope to discover during the accelerator's second run