Gravitational interaction of antimatter

Gravitational interaction is something that happens between two objects when they both have mass and are close to each other. Antimatter is a special kind of matter that is the opposite of regular matter. Regular matter has mass and so does antimatter. When two pieces of antimatter get close to each other, they will pull on each other and act like magnets, just like two regular pieces of matter do. So just like regular matter, antimatter will also experience gravitational interactions with other pieces of antimatter.