Large Hadron Collider 2.0

The Large Hadron Collider, one of the world's most complex and expensive science experiments, will soon be switched back on. It's been 2 years since the collider was used to discover the Higgs Boson - the so-called God particle - which scientists believe turns energy into mass.

Al Jazeera's Tarek Bazley reports from deep beneath the border between Switzerland and France.

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