Temporal fusion bombs were a powerful type of temporal bomb. They were was capable of destroying an entire star system (especially when linked to a time rift) and any survivors would be reduced to a partial existence. A temporal fusion bomb was used on the Keshkali Ring Worlds, possibly placed there by humans. The surviving Keshkali later tried to destroy Earth with the Undertaker's Gift, another temporal fusion bomb. (PROSE: The Undertaker's Gift)