Antimatter the exact mirror image of regular matter. Antiatoms, which make up antimatter, are made up of the same scaffolding as regular atoms, protons and electrons. However, there is one major difference: While matter's electrons are negative, antimatter's positrons (antimatter's electron counterpart) have a positive charge. In the nucleus of a matter atom, there are protons and neutrons. Neutrons have no electrical charge, so they don't factor into the equation. Protons, however, have a positive charge in a matter neutron. Accordingly, the antiproton has a negative charge, which is opposite to the regular positively charged protons. When antimatter and matter collide, they destroy each other and release a massive burst of electromagnetic energy, as pictured above.