antimatter in astrophysics

Antimatter is a type of matter made up of antiparticles, which have the same mass as particles but opposite charges. For example, an electron has a negative charge, while its antiparticle, the positron, has a positive charge. In astrophysics, antimatter is significant because it is thought to have been created during the Big Bang alongside regular matter. However, there is much more matter than antimatter in the universe today, leading to questions about why this imbalance exists. Antimatter is also produced in certain high-energy processes, such as in cosmic rays and particle collisions, and has potential applications in advanced energy and medical imaging.