Why Do Stars Twinkle?
twinkle, twinkle, little star
You may be suprised to learn that stars actually never do no twinkling at all! When you look at a star they are seeing them through the thick layers of air that make up the earth’s atmosfere. When the stars light passes threw these layers of air, the light is bent or `refracted` diffrently by each layer. This is because of mosturre in the air, as well as diffrenet air temperatures and the movement of the air. Together it makes the starlight seem to be moving, witch we see as twinkling.
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