In the year 2008, which one of the following conducted a complex scientific experiment in which sub-atomic particles were accelerated to nearly the speed of light ?

The experiment in 2008 was conducted by the European Organization for Nuclear Research (CERN) using the Large Hadron Collider (LHC). The LHC is a 27-kilometre ring of superconducting magnets that pushes protons or ions to speeds very close to the speed of light before making them collide; CERN describes the machine and its operation in detail. The LHC’s first beam was successfully circulated on 10 September 2008, when protons were sent around the accelerator at nearly the speed of light—an event reported as the first beam for the LHC in 2008 [1]. Thus the correct choice is the European Organization for Nuclear Research.

Sources

1. [1] https://science.osti.gov/Science-Features/News-Archive/Science-Headlines/2008/09-10-08