ELI5: Explain Like I'm 5

Starspot

Okay, let's imagine you have a sticker on your shirt. That's like a starspot on a star, which is a big ball of hot gas up in the sky.

When we look at a star through a special tool called a telescope, we can see different parts of it. Just like how you can see different parts of your shirt when you look at it up close.

Sometimes, there are darker spots on stars called starspots. They are like big sun freckles, or like when you spill a little bit of paint on your shirt.

These starspots are important because they can tell us things about the star, like how old it is or how fast it's spinning. It's like looking at your shirt to see if it's new or if you've been wearing it a lot.

Scientists use really fancy tools to study starspots and find out more about stars. And just like how you can put a new sticker over the old one on your shirt, stars can also have new starspots form over the old ones.