particle accelerator LHC, the Large Hadron Collider of Cern, is being expanded.
The HiLumi-LHC project is scheduled to go into operation at the end of 2025. In
essence, the number of proton collisions is to increase from one billion
collisions per second to five billion. The researchers at Cern are looking for
unknown elementary particles to explain previously unsolved secrets of the
universe. One of the groundbreaking discoveries was the detection of the Higgs
this, a large amount of infrastructure and underground space is required. New
tunnels and a large cavern are being built, as wells as above-ground auxiliary
work for the shaft began at the beginning of August. A tunnel excavator
specially converted from diesel to electricity by Marti Tunnel will progress
half a metre a day to a depth of 60 metres until the end of 2018. The cavern
and the connecting tunnels to the particle accelerator will then be built.
Link to the documentary on Cern by SRF (German)