After two years of work, the LHC particle accelerator at CERN is back in action this weekend. The ring 27 kilometers long research center near Geneva is a fundamental research tool for probing the infinitely small.
In 2012, it allowed scientists to the discovery of the Higgs boson, which has many practical applications.
"Without the Higgs field, there would be no atoms, no nuclei, there would be no molecules, which are the basic elements of matter, then there would be no stars, No galaxy, no planetary system, no Earth, and therefore no life on Earth, "says physicist Rudiger Voss.
With the new generation of ring The energy of the collisions will be such that it can produce particles five times heavier than the largest currently known.
Proton billions will initially be injected into the accelerator. The energy will be increased gradually before the first collisions between proton beams provided in June.
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