Why there is no atmosphere on moon

You must have seen that astronauts wear spacesuits when they land on moon.

Do you know the reason? The reason is that moon has no atmosphere. Exactly, I should say it has negligible atmosphere. Let us discuss. As the gravitational force of moon is 1/6th on the gravitational force on earth. The escape velocity of gases or air molecules on earth is greater than the moon. Continue reading “Why there is no atmosphere on moon”