CERN’s OPERA Neutrino Anomaly (2011): The OPERA experiment reported neutrinos traveling from CERN to Italy appearing to arrive 60 nanoseconds faster than light, suggesting faster-than-light travel and potential time travel implications. The result shocked physicists, as it violated relativity. Intense scrutiny followed. Eventually, a faulty fiber-optic connection and clock synchronization error were found. After corrections, neutrinos obeyed light speed. Though not actual time travel, the incident highlighted scientific rigor: extraordinary claims require extraordinary evidence. It also showed how particle physics experiments can inadvertently probe time’s limits, reinforcing that exceeding light speed—and thus backward time travel—remains unproven and likely impossible.
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