Gamma-ray bursts (GRBs) are significantly more powerful than supernovae, with some events, like GRB 080916C, exhibiting energy equivalent to about 9,000 ordinary supernovae. These bursts are characterized by extremely high-energy emissions and rapid motion, with gas bullets moving at 99.9999% the speed of light. GRBs are believed to originate from supernovae, but their energy output is vastly greater. The discussion highlights the immense scale of energy released during these cosmic events. Understanding the power of GRBs is crucial for astrophysics and the study of cosmic phenomena.