What is corona?

Corona is like a glowing crown that appears around something bright when you look at it from far away.

Imagine your favorite light bulb, when you're close to it, you just see the bulb itself. But if you go really far away and look at it through a window or with a special tool, you might notice a glowing ring around it, like a crown. That glowing ring is called a corona.

Think of tiny particles in the air, like dust or water droplets. When light from the bulb passes through these tiny particles, they bend the light slightly. This bending makes the light spread out, and you see that glowing crown effect around the bulb.

It's similar to how a rainbow happens, both use tiny particles to change the way light moves!

You might have seen this when looking at the sun through clouds on a hazy day. The sunlight passes through small water droplets in the air, creating a soft glowing halo around the sun, that's a corona too!