The universe is everything we can see, touch, and even imagine, all of it, together.
Imagine you have a giant box full of toys: cars, blocks, balls, and maybe even some crayons. That's like the universe, but way bigger! It has stars, which are like super bright lights in the sky; planets, which are like big rocks that orbit around those stars (just like how your toy car goes around a track); and galaxies, which are like giant collections of stars, all dancing together.
What's inside the universe?
The universe is full of things you can see, like the sky at night, and many things you can't. Think about it like this: if your room was the universe, then you could see your toys and your bed, but there might be other rooms behind walls that you don’t know about yet.
The universe keeps growing
Just like you grow taller every year, the universe is also getting bigger, all the time. It's like a balloon that someone is blowing up, and everything on it moves away from each other as it expands. The universe is everything we can see, touch, and even imagine, all of it, together.
Imagine you have a giant box full of toys: cars, blocks, balls, and maybe even some crayons. That's like the universe, but way bigger! It has stars, which are like super bright lights in the sky; planets, which are like big rocks that orbit around those stars (just like how your toy car goes around a track); and galaxies, which are like giant collections of stars, all dancing together.
What's inside the universe?
The universe is full of things you can see, like the sky at night, and many things you can't. Think about it like this: if your room was the universe, then you could see your toys and your bed, but there might be other rooms behind walls that you don’t know about yet.
The universe keeps growing
Just like you grow taller every year, the universe is also getting bigger, all the time. It's like a balloon that someone is blowing up, and everything on it moves away from each other as it expands.
Examples
- If the universe were a school, Earth would be just one student in the class.
Ask a question
See also
- What Are Barred Spiral Galaxies?
- How Does Galaxies, part 1: Crash Course Astronomy #38 Work?
- What are galaxy clusters?
- What Are We Made Of — And What Is Out There?
- How Does Galaxies: Explained | Astronomic Work?