In ancient times, people thought the sky as a cover of the earth.But now,with the help of science,people have been able to come out of this misconception. The idea so far derived from the well-established knowledge of science about the universe is that the vasr azure we call the sky nothing more than a play on the colors of the sun and this earth is not at all vast compared to the universe.A part from the earth there are many planets and stars in this universe.Scientists have done a lot of research to date and said that this universe is expanding day by day and will continue to be more.We see the sky blue because of the light of the sun and the small stars we see in the sky are huge stars
