Babbage: How to unlock the secrets of the universe—part one

The Large Hadron Collider (LHC) is restarting after a three-year break for maintenance and upgrades. In the first of two episodes, host Alok Jha travels to the Franco-Swiss border to find out what the particle accelerator could reveal about the fundamental building blocks of the universe. In 2012, the LHC discovered the Higgs boson, the final piece of the Standard Model of particle physics. But physicists know that that theory is incomplete—it does not account for gravity, dark energy or dark matter, and cannot explain why there seems to be more matter than antimatter. In its third run of experiments, we investigate how the LHC might change our understanding of physics at its most fundamental scales. 

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