I am an invisible pulling force that keeps the planets in orbit around the sun what amyou?

There are TWO forces that keeps objects in orbit; gravity and inertia.

Everything is in motion. The force of inertia, the momentum that an object has BECAUSE it is moving, KEEPS the object moving - at a constant speed and in the same direction. But if inertia alone ruled, all of the planets would fly out away from the Sun. Another force must tie things together, and that is gravity.

Gravity ties every mass to every other mass, pulling them together with a force that is proportional to their masses - but which decreases proportionally to the SQUARE of the distance between them.