The 10 most powerful weapons in the world – number one could kill 10 million

From hypersonic missiles to autonomous doomsday torpedoes, these are the 10 deadliest weapons on Earth – and the terrifying destruction they could unleash.From hypersonic intercontinental missiles capable of wiping out entire countries to autonomous nuclear super-torpedoes designed to trigger apocalyptic tsunamis, modern military arsenals contain unprecedented destructive power.