CERN, European Organization for Nuclear Research - What exactly is it?

European Organization for Nuclear Research or CERN was established in 1954 in Geneva, Switzerland. CERN's main function is to provide the particle accelerators and other infrastructure needed for high-energy physics research – as a result, numerous experiments have been constructed at CERN through international collaborations.
What is CERN up to? We barely get to know anything going on inside. Let's go inside now.
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