What is the most expensive substance on Earth?
Uranium
Rhodium
Plutonium
Antimatter
Fact: Antimatter is the most expensive substance on earth. A 1999 NASA report estimated the production cost of one gram of antimatter at a staggering $62.5 trillion, a figure that reflects the difficulty of manufacturing them rather than a commercial price. Antimatter has inspired visions of spacecraft traveling far beyond our solar system because it releases enormous amounts of energy when it meets ordinary matter. Particle accelerators have produced only minuscule quantities of antimatter, measured in nanograms, or billionths of a gram.
Correct Answer: Antimatter