Collider experiments are scientific investigations that use particle colliders to accelerate and smash particles together at high speeds. These collisions create extreme conditions similar to those just after the Big Bang, allowing scientists to study fundamental particles and forces. One of the most famous colliders is the Large Hadron Collider (LHC), located at CERN in Switzerland. By analyzing the debris from these collisions, researchers can discover new particles, such as the Higgs boson, and test theories in particle physics, helping to deepen our understanding of the universe.