At night, when the sky is clear and the moon is not there, you may sometimes see bright streaks of light in the sky . These are commonly known as shooting stars, although they are not stars. They are called meteors. A meteor is usually a small object that occasionally enters the earth’s
atmosphere. At that time it has a very high speed. The friction due to the atmosphere heats it up. It glows and evaporates quickly. That is why the
bright steak lasts for a very short tim
e.