Antimatter is a most potent and efficient fuel known so far. While tons of chemical fuel are needed to propel a human mission to Mars, just tens of milligrams of antimatter can do the same thing. Only 1kg of antimatter can release the useful energy in equivalent of 20 megatons of TNT, which is nearly half of energy released by a hundreds of kilograms of fissile material in the Tsar Bomba (50 megatons of TNT), the most powerful nuclear bomb ever detonated....>>>