If anyone have any doubt ask me

1.	If anyone have any doubt ask me
Answer» Actually stars move but it can\'t be observed.If u want to know more pls watch a video of vigyaan tv india on youtube which is my channel Stars twinkle because of refraction.The space consists of many mediums of different optical density which leds to the refraction of light Questions sun ke bhaag gya... Why do stars twinkle? Haemoglobin is red due to presence of iron content in it. Why heamoglobin is red Why stars are stationary ? Why they can\'t move

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