Question
Sun December 11, 2011 By: Cool Thomasina

How is scattering of light responsible for the twinkling of stars??

Expert Reply
Mon December 12, 2011
Stars twinkle because of turbulence in the atmosphere of the Earth. As the atmosphere churns, the light from the star is refracted in different directions. This causes the star's image to change slightly in brightness and position, hence they "twinkle".
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