Have you seen the night flash?
Last week, people in America saw this.
A huge light ran across the sky.
It was a fireball.
A fireball is a very bright meteor.
A meteor is a small space rock.
It moves fast through the air.
The air gets very hot and shines.
Now, picture walking home with your mother.
Suddenly, the sky flashes like a camera.
You may feel afraid.
But most meteors burn up above us.
So, look up on clear nights.
A small rock can make great light.
The dark sky can hold a surprise.
