What is Gravity?

Gravity is an invisible force that pulls objects towards each other. It’s the reason why we stay firmly planted on the ground, why rain falls from the sky, and why the planets orbit the Sun. Without gravity, everything would just float away!

How Does It Work?

Every object with mass — that means anything that has weight — pulls other objects toward it. The more massive an object is, the stronger its gravitational pull. Earth is huge, so it has a strong pull, which keeps us and everything else anchored to the surface. Even you have gravity, but because you're much smaller compared to Earth, you don't notice it pulling things toward you!

Who Discovered Gravity?

The story goes that a scientist named Isaac Newton began thinking about gravity when he saw an apple fall from a tree. He realized there must be a force pulling the apple downward. His ideas helped us understand not only falling apples, but also how planets and moons move in space.