The Large Hadron Collider (LHC) is the world's largest and most powerful particle accelerator, located at CERN in Switzerland. It is used by scientists to study the fundamental particles of the universe and the forces that govern their interactions. The LHC accelerates beams of protons or heavy ions to nearly the speed of light and then collides them at incredibly high energies. These collisions produce a wide variety of subatomic particles, some of which are extremely rare and only exist for fractions of a second. By studying the particles and interactions created in these collisions, scientists can explore key questions about the nature of matter and the universe, such as the existence of the Higgs boson, the properties of dark matter, and the possibility of extra dimensions. Research at the LHC has already led to numerous important discoveries and continues to push the boundaries of our understanding of the fundamental building blocks of the universe.