Large Hadron Collider restarts after two-year refit
The "Big Bang" Large Hadron Collider has been restarted after a two-year refit, scientists at Cern have said.
Large Hadron Collider: New physics could be discovered
The Large Hadron Collider has been restarted today, giving scientists the hope that they will gain a "better understanding of the physics underlying the universe" as they try to find out more about dark matter.
Working by accelerating particles to nearly the speed of light, and then colliding them inside collectors, the machine enables scientists to examine the debris of the collisions to find hints of new particles and new physics.
ITV News' Science Correspondent Alok Jha reports:
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