Here's why:

* Inverse Square Law: Gravity follows an inverse square law. This means that the force of gravity is proportional to the inverse of the square of the distance between two objects.

* Formula: The formula for gravitational force is:

* F = G * (m1 * m2) / r²

* F = force of gravity

* G = gravitational constant

* m1, m2 = masses of the two objects

* r = distance between the centers of the two objects

* Interpretation: As 'r' (distance) decreases, the denominator in the formula gets smaller. Dividing by a smaller number results in a larger force.

Example: If you double the distance between two objects, the force of gravity between them decreases to one-fourth of its original value. Conversely, if you halve the distance, the force of gravity increases to four times its original value.