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Meteor showers

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Sparkling sky

Sometimes when you stare into the night sky in the countryside, you may see a trail of light. It will travel quickly through the darkness and then disappear. This is called a meteor.

A large amount of this activity in one area of the sky is called a meteor shower. There are times when the whole sky will light up with many thousands of meteors. We call this a meteor storm.

Meteor showers are caused by grains of dust from space entering the earth's atmosphere. Most of these grains are smaller than a grain of sand. They quickly burn up as they hit the air that surrounds our planet - the atmosphere. They do not hit the ground. Meteors that hit the ground are called meteorites.

Comet dust

You can think of comets as tiny planets. Like our earth, they circle the sun. They are made of ice, rocks and dust. They can be tens of kilometres across. If one were to hit the earth, it might destroy civilisation.

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