Supercharged Large Hadron Collider Tackles Universe's Big Questions

Ramped up in power after a two-year upgrade, the world’s most powerful particle accelerator is once again doing science. Following its official restart on June 3, the Large Hadron Collider (LHC) at CERN, Europe’s particle-physics lab near Geneva, Switzerland, can smash protons together faster and with higher energies than during its first run, which ended in February 2013. In the next run, set to last three years, energies will rise to an eventual 14 teraelectronvolts.



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