Stellar corona

The Sun is a big fiery ball of gas that gives us heat and light. But did you know that the Sun has something called a "corona" surrounding it? The corona is very, very hot and it's actually made up of gas and plasma (which is a super-hot gas that has charged particles).

Imagine if you had a big, hot ball and you put a bunch of gas around it. That's kind of what the corona is like. It's kind of like a halo around the Sun.

Scientists study the corona because it can tell us a lot about the Sun and about space in general. They've found that the corona is very important because it can affect things on Earth, like our weather and our technology.

So even though we can't see the corona with our eyes (because the Sun is too bright), scientists still study it to learn more about space and our place in it!