CERN is about to revoke access for about 500 scientists affiliated with Russian institutions, cutting Russia's researchers off from its state-of-the-art facilities.
The European Organization for Nuclear Research, known as CERN — home to the world's only Large Hadron Collider — announced the number of affected scientists on Monday, Reuters reported, finalizing a pledge first made after the outbreak of Russia's full-scale invasion of Ukraine.
The move is a major break for the institution in Geneva.
Russia isn't a CERN member state but has held observer status since the height of the Cold War — a partnership that reflected CERN's postwar founding mission of "science for peace."