Scientists and legal experts have raised concerns that an ambitious experiment using a super-charged ion collider could accidentally destroy planet Earth. The Large Hadron Collider is the largest and most complex scientific instrument ever built and the highest energy particle accelerator in the world. The accelerator is located 100 m underground and runs through both French and Swiss territory. ( 27km circumference) Credit: Youtube/Senanayake M
Video: How it works: CERN's Large Hadron Collider in action
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