The force of gravity between two objects decreases as they move farther away from each other. This is described by Newton's Law of Universal Gravitation:

F = G * (m1 * m2) / r²

Where:

* F is the force of gravity

* G is the gravitational constant (a fixed value)

* m1 and m2 are the masses of the two objects

* r is the distance between the centers of the two objects

As you can see, the force of gravity (F) is inversely proportional to the square of the distance (r²). This means that if you double the distance between the objects, the gravitational force between them will decrease to one-fourth of its original value.

In simpler terms: The farther apart two objects are, the weaker the gravitational pull between them becomes.