Here's a breakdown:

* Newton's Law of Universal Gravitation: This law describes the force of gravity between any two objects with mass. The force is:

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

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

* Formula:

```

F = G * (m1 * m2) / r^2

```

where:

* F is the force of gravity

* G is the gravitational constant (approximately 6.674 × 10^-11 N⋅m²/kg²)

* m1 and m2 are the masses of the two objects

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

Key Points:

* Gravity is a fundamental force in the universe, responsible for keeping planets in orbit around stars, and for the formation of galaxies.

* It is always attractive, pulling objects towards each other.

* While gravity is the weakest of the four fundamental forces, it is the most significant force acting over long distances.

Let me know if you'd like to explore any specific aspects of gravity in more detail!