Question

why do stars twinkle​

Answer 1

Answer:

stars twinkle due to atmospheric refraction

as when starlight enters in out earth it undergoes multiple bendings due to our atmospheric layer

so it appears to be twinkling

Answer 2

Answer:

The change in intensity of light coming from the stars is called twinkling of stars. The twinkling of stars occurs due to atmospheric refraction of star's light. Hence, the star light reaching our eyes change continuously and stars appear to twinkle.