why is the sky blue?

Question

If the sky is blue during the day, then what color is it at night? ie.... (dark-blue/or/black)

Answer 1

http://math.ucr.edu/home/baez/physics/General/BlueSky/blue_sky.html

http://www.sciencemadesimple.com/sky_blue.html

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

Answer 2

The sky is blue during the day because the nitrogen in the air causes a refraction of sunlight that our eyes perceive as blue. At night, the light from the distant stars isn't enough to create the same effect, so it is basically clear gas.

Answer 3

When sunlight passes through our atmosphere, the water droplets and other things in the air
diffuse the sunlight. Everything in the air acts like a prism. If you notice the color
spectrum, blue does have the shortest wavelength than red so therefore it does not scatter
or disperse, it comes through and that is what we see. The colors toward the reds have a
longer wavelength and they diffuse or scatter easier than blue, more atmosphere like at
sunrise and sunset gives the reds as the short wavelenghts are bounced away from our eyes.

Answer 4

Oh that's easy, everyone knows that...

the sky is blue because air atoms are actually blue and the only time you see enough air atoms is in the sky...

at night the night air atoms rise to the sky (they are pushed into the ground in daylight...

Answer 5

Everyone know why it is blue during the day.

During the night it is absent of any color. Black is the absence of color.

Answer 6

some times is some times ain't (actually the sky is always blue somewhere) and at night it is black if you haven't noticed (must not get out much)

Answer 7

cause the oceans reflections on the gases in the atmospheres cause the sky to appear blue

Answer 8

That's good Ronin. Here's another question --

How many times has that been asked on here to date?

Answer 9

I refuse to answer this question anymore.

Answer 10

thanks for 2 points