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The blue sky spectrum contains light at all visible wavelengths with a broad maximum around 450–485 nm, the wavelengths of the color blue. Diffuse sky radiation is solar radiation reaching the Earth's surface after having been scattered from the direct solar beam by molecules or particulates in the atmosphere.
View of the night sky in July The day's blue sky, clouds and the Moon. The sky is an unobstructed view upward from the surface of the Earth. It includes the atmosphere and outer space. It may also be considered a place between the ground and outer space, thus distinct from outer space.
The sky isn't just blue by chance. ... The white appearance of sunlight reaching the Earth actually comes to us in all colors of the rainbow, all of which travel in different wavelengths.
The red light reaches the observer's eye, whereas the blue light is scattered out of the line of sight. Other colours in the sky, such as glowing skies at dusk and dawn. These are from additional particulate matter in the sky that scatter different colors at different angles. Halos, afterglows, coronas, polar stratospheric clouds, and sun dogs.
The Rayleigh sky model describes the observed polarization pattern of the daytime sky. Within the atmosphere, Rayleigh scattering of light by air molecules, water, dust, and aerosols causes the sky's light to have a defined polarization pattern. The same elastic scattering processes cause the sky to be blue.
Airglow over Auvergne, France Yellow, green and red bands of airglow along Earth's limb as seen from space. Airglow (also called nightglow ) is a faint emission of light by a planetary atmosphere . In the case of Earth's atmosphere , this optical phenomenon causes the night sky never to be completely dark, even after the effects of starlight ...
The world's most favorite color is blue. According to a YouGov poll, pretty much every country on the planet lists it as such. Plus, it's delighted and intrigued scientists and artists (see ...
The color of the sky will vary depending on time of day, local conditions, and perspective of the viewer. An aurora makes this sky green. A yellow sky sometimes appears before a severe thunderstorm. After sunset, the sky darkens to purple, and later black. It is sometimes felt that "obvious" statements, such as "the sky is blue", do not need ...