Why is the sky.........?

  • Thread starter Thread starter Emilee D
  • Start date Start date
Hi. It's snowing here. And night time. No kidding!

Your real question is "When the sky is blue, why is it blue?" You will hear many thoughts but nitrogen gas which makes up most of the atmosphere is a very, very pale blue. That's why on a tall mountain or flying in a high altitude aircraft the sky is darker. Less air above you.

Edit. I got a thumbs down for this answer? Tough crowd!
 
A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.
 
Simply…The sun shines white and black light to our planet. The white light has all the colors in it. In our upper atmosphere, we have dust particles and oxygen molecules. The white light meaning all of the colors in a rainbow shines through the upper levels of the atmosphere and the blue light scatters across the entire planet. That is why our sky is blue. Now, during sunrise and sunset, the light traveling through atmosphere is longer at the horizon, then if you were to look up high in the sky. There are more dust particles and oxygen molecules at the horizon, so that is why you see such pretty colors like red, oranges and yellows.
 
Back
Top