| gptkb:core-collapse_supernova | ~10^44 joules | 
                        
                            
                                | gptkb:Type_Ia_Supernova | ~10^44 joules | 
                        
                            
                                | gptkb:2013_Russian_meteor_event | ~470 kilotons of TNT | 
                        
                            
                                | gptkb:proton-proton_I_chain | ~26.7 MeV per reaction | 
                        
                            
                                | gptkb:1908_Tunguska_event | 10–15 megatons of TNT | 
                        
                            
                                | gptkb:GW150914_observation | ~3 solar masses converted to gravitational waves | 
                        
                            
                                | gptkb:Type_II_supernova | ~10^44 joules | 
                        
                            
                                | gptkb:triple-alpha_process | 7.275 MeV | 
                        
                            
                                | gptkb:potassium-40_decay | 1.505 MeV (electron capture) | 
                        
                            
                                | gptkb:The_Zorro_Burst | extremely high | 
                        
                            
                                | gptkb:Naked-eye_burst | ~10^54 ergs | 
                        
                            
                                | gptkb:Chelyabinsk_meteor | about 470–500 kilotons of TNT | 
                        
                            
                                | gptkb:GRB_080916C | 8.8×10^54 ergs | 
                        
                            
                                | gptkb:March_5,_1979_gamma-ray_burst | ~10^44 joules | 
                        
                            
                                | gptkb:Tunguska_event | 10–15 megatons of TNT | 
                        
                            
                                | gptkb:Chicxulub_impactor | about 100 teratons of TNT | 
                        
                            
                                | gptkb:Alpha_decay | Typically 4-8 MeV | 
                        
                            
                                | gptkb:binary_black_hole_merger_GW150914 | ~3 solar masses converted to gravitational waves | 
                        
                            
                                | gptkb:potassium-40_decay | 1.311 MeV (beta minus) | 
                        
                            
                                | gptkb:Chicxulub_impact | ~10^23 joules |