Proton collisions at the LHC end on a high(-luminosity) note 💫 During this year, an exceptional volume of data was collected at a collision energy of 13.6 teraelectronvolts (TeV). The integrated luminosity, which relates to the number of collisions recorded in a given amount of time, reached 125 inverse femtobarns for the ATLAS and CMS experiments, and the total is more than 520 inverse femtobarns since 2010. Watch to find out more about what this means. 👇 | CERN

33K views · 1.4K reactions | Since 2003, a LHC dipole magnet turned into a telescope has been following the Sun's movements from behind a concrete wall. This is the CAST experiment - hunting for hypothetical "axion" particles that could be produced in the centre of our star ☀️ Find out more about this experiment: https://home.cern/science/experiments/cast | CERN | Facebook

33K views · 668 shares | #2019inreview Relive the physics and experiments highlights of the year. | CERN | Facebook

Discover the methods and precision instruments used by CERN surveyors in the service of a 27 km giant. Dive with Philippe, a member of the Accelerators, Survey and Geodesy section, into the heart of the sub-millimetre alignment of a radiofrequency cavity in the LHC. | CERN