<human>:  Could you explain Newton's Law of Universal Gravitation?
<bot>: Newton's Law of Universal Gravitation states that every particle in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. This holds true regardless of the masses or distances involved. The gravitational force is also described by an inverse square law, meaning that the force between two objects decreases as the square of the distance between them increases.