Here's why:
* Ordinary matter is made up of particles like protons, neutrons, and electrons. These particles have specific properties like charge (positive or negative) and spin.
* Antimatter is composed of antiparticles, which have the same mass as their corresponding particles but opposite charge and other properties. For example, an antiproton has the same mass as a proton but carries a negative charge.
When matter and antimatter meet, they annihilate each other, releasing a tremendous amount of energy. This is why antimatter is so fascinating and potentially powerful.