Why does twinkle? Science
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Explanation:
Twinkling of stars is due to the large distance between them and Earth. Even when viewed with the help of a large telescope, they appear as pinpoints easily disturbed by the Earth's atmosphere.
Once the light from a star enters the Earth's atmosphere, each of its rays get refracted, causing a slight change in the direction due to various temperature and density layers of the atmosphere. You can visualize that light moves in a zig- zag path instead of a straight path to your eyes in case the Earth didn't have an atmosphere.
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