Graviton

In physics, the graviton is a elementary particle that mediates the force of gravitation in the framework of quantum field theory. The graviton is massless (because the gravitational force appears to have unlimited range) andis a spin-2 boson. The spin follows from the fact that the source of gravitation is the stress-energy tensor, a second-rank tensor (compared to electromagnetism's spin-1 photon, the source of which is the four-current, a first-rank tensor). Additionally, it can be shown that any massless spin-2 field give rise to a force indistinguishable from gravitation, because a massless spin-2 field must couple to (interact with) the stress-energy tensor in the same way that the gravitational field does.

The existence and control of Gravitons came to Earth sience with the Sarans. It was like kicking open a new door for Earth Scientists and soon the first Artigrav devices were built.

(Dr. Isah flying a Fire Engine from Texas to New York was the first Earth built Artigrav device)