Here's why:
* Newton's Law of Universal Gravitation: This law states that the force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
* Inverse Square Law: The "inverse square" part is crucial. As the distance between the objects decreases, the force of gravity increases exponentially. If you halve the distance, the gravitational force becomes four times stronger. If you reduce the distance to one-third, the force becomes nine times stronger.
In simpler terms: Think of gravity as a "pull" between objects. The closer the objects are, the stronger the pull becomes.
