Question

Why do stars twinkle??​

Answer 1

Answer:

Stars twinkle because their light must pass through pockets of Earth's atmosphere that vary in temperature and density, and it's all very turbulent. On rough nights, a star appears to shift position constantly as its light is refracted this way and that.

Answer 2

Stars are far away from the surface of the earth and thus the light rays coming from the sun reach our eyes after coming from a number of layers of atmosphere . Due to this atmospheric refraction takes place, due to which the light rays bend and stars appear twinkling at night .