Ion colliders are advanced scientific machines designed to accelerate charged particles, or ions, to high speeds and smash them together. This process allows researchers to study the fundamental components of matter and the forces that govern their interactions. By colliding ions, scientists can recreate conditions similar to those just after the Big Bang, providing insights into the early universe. One of the most notable ion colliders is the Large Hadron Collider (LHC), located at CERN in Switzerland. The LHC can collide heavy ions, such as lead, to explore phenomena like quark-gluon plasma, a state of matter thought to have existed shortly after the universe began. These experiments help deepen our understanding of particle physics.