Here's why:
* Newton's Law of Universal Gravitation: This law 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 gravitational force between them.
* Inversely proportional to the square of the distance between their centers: The farther apart the objects are, the weaker the gravitational force.
* Always Attractive: Gravity is always an attractive force, meaning it pulls objects towards each other.
While gravity is the weakest of the fundamental forces, it's the most influential force over large distances. This is why planets orbit stars, galaxies cluster together, and the universe itself is expanding in a way influenced by gravity.
