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(physics) matter consisting of elementary particles that are the antiparticles of those of regular matter
- Antimatter is composed of antiparticles, which have the same mass as their corresponding particles but opposite electric charge.
- When matter and antimatter particles collide, they annihilate each other, releasing energy in the form of gamma rays.
- Antimatter is rare in the universe, but small amounts of it can be produced in high-energy particle collisions.
- Scientists study antimatter to better understand the fundamental laws of physics and the origins of the universe.
- Antimatter propulsion is a theoretical concept that could potentially enable spacecraft to travel at near-light speeds in the future.