The CERN Large Hadron Collider is back
The CERN Large Hadron Collider, the LHC, is the world’s highest-energy particle accelerator. It smashes together protons with energies almost 7,000 times their intrinsic energy at rest to explore nature at distances as small as 1 part in 100,000 of the size of an atomic nucleus. These large energies and small distances hold clues to fundamental mysteries about the origin and nature of the elementary particles that make up matter.