Newton's Law of Universal Gravitation states that every particle in the Universe attracts every other particle with a force that is:

* Proportional to the product of their masses: The more massive the objects, the stronger the attraction.

* Inversely proportional to the square of the distance between their centers: The farther apart the objects, the weaker the attraction.

In other words, every object in the universe exerts a gravitational pull on every other object, even if it's incredibly weak.

For example:

* You are exerting a gravitational force on your chair right now, and it's exerting a force on you.

* The Earth exerts a gravitational force on the Moon, keeping it in orbit.

* The Sun exerts a gravitational force on the Earth, keeping it in orbit around the Sun.

While the force between everyday objects is very small, it's still there. It's only when you get to very massive objects like planets and stars that the force becomes significant enough to observe.