Why is the sky blue?

Question

I just don't know....I've search everywhere for this answer but to no avail. Plz help.

Answer 1

Something about the ice crystals in the air. All the colors of the rainbow are there, but we can only see blue because of the ice crystals.

Pretty vague. huh. Sorry. Hope somebody has a better answer!!

Good luck!

Answer 2

The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air.

However, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue.


All colors have wavelengths which are diffused by the oxygen and nitrogen that primarily makes up our atmostphere. Since violent has the shortest wavelength, it's diffused (meaning scattered) up to ten times more, which theorectically means the sky's true color is violet. Our eyes are more sensitive to blue light because of its relatively longer wavelength when compared to violet, and we understand the sky's appearence to be blue.

Answer 3

The short answer is that it is due to Rayleigh scattering of sunlight by the atmosphere, which scatters blue light the best. This same reason is why the moon and sun appear red when low to the horizon, and it is also why blue eyes are blue.
Try searching this Yahoo answers sight, since this question seems to be asked every few days on end.

Answer 4

It all has to do with the wavelenghts of the sun light. Some of the light waves go so close to the Earth, but touches the Earth ever so slightly (tangent), result in wavelengths that are the longest that appear.

Read up on the site I gave.

Answer 5

the color of the sky is a result of diffuse sky radiation and the fact that the air is actually a very transparent blue color. on a sunny day the earth sky usually looks as a blue gradient.

Answer 6

Blue light scatters most effectively in the particular makeup of our atmosphere, primarily due to the respective refractive indices of air and of water vapor. Because the blue light scatters so well, more of it reaches your eye than light of other colors.

Answer 7

it appears blue. it has to do with reflections of light. keep searchin, the info is there. ask a science teacher. they are the best resources.



the light spectrum has all colors of the rainbow. it has to do with wavelenght too, pretty hard to explain. but sci teacher would be great at explaining.

Answer 8

It isn't. Right now it is gray. Seriously, it has to do with how light is reflected/refracted, and how we perceive that effect.

http://www.why-is-the-sky-blue.tv/why-is-the-sky-blue.htm

Answer 9

It's because the moon kissed another Guy !!

Answer 10

We used to ask my 7th grade science teacher this when we didn't want to do anything... he would go on FOREVER!!!!