What is Planetary evolution?

Planetary evolution is how planets change and grow over billions of years, like a big, slow game of building blocks.

Imagine you have a pile of sand on the beach. When the waves come in, they move the sand around, some parts get higher, others get lower. Over time, the shape of the sandpile changes. That’s kind of what happens to planets.

Think about planets like kids who are growing up. At first, they’re small and messy, maybe a bit hot or cold, but as time passes, they start to get more organized. They might get bigger by eating up nearby rocks or dust, or they might cool down and become solid. This whole process is planetary evolution.

Sometimes planets are like a game that takes millions of years to play. Some parts of the planet might be pulled apart by gravity, while others crash together, just like when you stack blocks and one falls over. But even with all this chaos, the planet keeps changing little by little, becoming more like the planet we know today.