Quantum gravity is a theoretical framework in physics dedicated to developing a consistent description of gravity and its relationship with quantum mechanics. It aims to unify the principles of general relativity, which accurately describes gravity on astronomical and cosmological scales, with the principles of quantum field theory, which govern the behavior of matter and forces at subatomic levels. Current formulations of physics break down in extreme conditions, such as the singularity within a black hole or the conditions immediately following the universe's initial expansion, necessitating a theory that can smoothly bridge the vast scale differences between classical geometry and quantum uncertainty. Various proposed approaches explore concepts such as quantizing spacetime itself, treating gravity not merely as a curvature of space-time but as a fundamental force mediated by elementary particles.