Matter and antimatter are two fundamental components of the universe. Matter is made up of particles like protons, neutrons, and electrons, which combine to form everything we see around us, from stars to planets to living beings. Antimatter, on the other hand, consists of particles that have the same mass as matter particles but opposite charges. For example, the antimatter counterpart of an electron is called a positron. When matter and antimatter meet, they annihilate each other in a burst of energy, releasing gamma rays. This process is described by Einstein's famous equation, E=mc², which shows the relationship between mass and energy. Antimatter is rare in the universe, leading scientists to explore its properties and potential applications in fields like medical imaging and particle physics.