Quantum gravity

Quantum gravity is a way of explaining how gravity works on the very smallest level. Gravity is an invisible force that attracts objects to each other. Think of it like a big hug – when you hug someone, you pull them in close to you. In the same way, when an object exerts gravitational force on another object, it pulls them closer together. Quantum gravity is a theory that describes what happens when you try to understand gravity on a tiny scale, like an atom. It's called "quantum" because it tries to explain how things work on a very small scale, like how light particles work. On this small scale, things move around in weird ways that don't make sense when applied to things you can see with your eyes. Quantum gravity tries to explain this strange behavior and make sense of it. In other words, it's a way to figure out how gravity works on the very smallest levels.