Blue light is scattered in all directions by the tiny molecules of air in Earths atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time. Closer to the horizon, the sky fades to a lighter blue or white.
Why do we see blue sky?
The sky is blue due to a phenomenon called Raleigh scattering. This scattering refers to the scattering of electromagnetic radiation (of which light is a form) by particles of a much smaller wavelength. These shorter wavelengths correspond to blue hues, hence why when we look at the sky, we see it as blue.
How does sky look blue?
Violet and blue light have the shortest wavelengths and red light has the longest. Therefore, blue light is scattered more than red light and the sky appears blue during the day. When the Sun is low in the sky during sunrise and sunset the light has to travel further through the Earths atmosphere.
Which article is before sky?
The definite article is used for objects of which there is only one, the sky, the sun, the moon etc.
Can we say skies?
skies [ plural ] the sky in a particular state or place: For weeks we had cloudless blue skies. Were off to the sunny skies of Florida. Near as I can tell, its okay to use the plural form when you are referring to the weather, or to the sky in a particular state or place.
Is the sky still blue at night?
The sunlight reaching our eyes has a high ratio of short, bluish wavelengths compared to medium and long wavelengths, so we perceive the sky as being blue. But even a black sky has some lightness. At night, the sky always has a faint color, called skyglow by astronomers.