Graviton

Gravitons were force carrier particles responsible for carrying the force of gravity. They had no mass, and no electrical charge. Gravitons had a spin of 2. Due to the fact they had no mass, they traveled at the speed of light and had an infinite range, and thus gravity was carried an infinite distance (although its power weakened as distance from its source increased).

Gravitons were generated through interactions of particles with mass with the momenton field. These interactions released gravitons in all directions. Due to this, very large collections of particles forming large objects produced a huge number of gravitons travelling in all directions.

Antigravitons created negative gravity (a repulsive force). Antigravitons could be created if negative matter interacted with the momenton field.