A torpedo is a self-propelled weapon designed to travel underwater and explode upon impact with a target, typically a ship or submarine. They are launched from various platforms, including submarines, ships, and aircraft. Torpedoes can be guided or unguided and are equipped with explosive warheads to maximize damage. The development of torpedoes began in the 19th century, with significant advancements during both World Wars. Modern torpedoes, such as the Mark 48 and Spearfish, utilize advanced technology for targeting and navigation, making them effective tools in naval warfare.