Supersymmetric grand unified theories (SUSY GUTs) aim to unify all fundamental particles and interactions into a single theoretical framework by extending the Standard Model to include supersymmetry and embedding the strong, weak, and electromagnetic forces into a simple gauge group at an ultra-high unification energy scale above 1015 GeV. Key predictions include heavier supersymmetric partners to Standard Model particles, new heavy gauge bosons that mediate interactions between forces, and heavy right-handed neutrinos. Unification of gauge couplings is achieved, and SUSY GUTs provide...