http://www.newsweek.com/future-circular-collider-cern-large-hadron-collider-cern-particle-physics-1293524

Particle accelerators are an extremely useful tool for scientists wishing to probe the fundamental open questions in physics. The largest and most powerful accelerator in the world—the Large Hadron Collider (LHC), which lies deep below the France-Switzerland border—has made several groundbreaking discoveries, including the confirmation of an elusive subatomic particle known as the Higgs Boson.

Now, officials at the European Organization for Nuclear Research (CERN)—which operates the LHC—has unveiled plans to build an even bigger successor accelerator, right next to it, to further probe the mysteries of matter and the universe.