Here is more in depth info on the CERN project from wikipedia:

The European Organization for Nuclear Research (French: Organisation européenne pour la recherche nucléaire), known as CERN (/ˈsɜrn/; French pronunciation: ​[sɛʁn]; derived from the name “Conseil Européen pour la Recherche Nucléaire”; see History) is a European research organization that operates the largest particle physics laboratory in the world. Established in 1954, the organization is based in a northwest suburb of Geneva on the Franco–Swiss border, (46°14′3″N 6°3′19″E) and has 21 European member states. Israel is the first (and currently only) non-European country granted full membership.^[3]

The term CERN is also used to refer to the laboratory, which in 2013 had 2,513 staff members, and hosted some 12,313 fellows, associates, apprentices as well as visiting scientists and engineers^[4] representing 608 universities and research facilities and 113 nationalities.^{[citation needed]}

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 as a result of international collaborations.

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https://www.youtube.com/watch?v=czDmyolZn7c