, Studied astronomy in school. Blue light is scattered in all directions by the molecules of air in Earth’s atmosphere which starts at ground level and goes onward to about 330,00 feet. However most of the scattering of light occurs where teh atmosphere is denser (lower altitudes).
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Why the sky is blue?
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.
then How high does the sky turn black?
The sky is dark at about 80 km up, the top edge of the Mesosphere (at Mesopause). The atmosphere extends all the way up to 800 km, but it’s very, very thin up that high. The ISS is orbiting at about half that altitude.
What is Colour sky? Gases and particles in Earth’s atmosphere scatter sunlight in all directions. Blue light 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.
Why Earth looks blue from space?
– The earth is largely (71 percent of the surface of the earth) covered by water. Water blocks the radiation of white light (sunlight). … As illumination enters the water, the water consumes white light and reflects just blue light, lights of all colors. The earth from space, thus, looks blue.
Why is space black? Because space is a near-perfect vacuum — meaning it has exceedingly few particles — there’s virtually nothing in the space between stars and planets to scatter light to our eyes. And with no light reaching the eyes, they see black.
Why are clouds white? Clouds are white because light from the Sun is white. … But in a cloud, sunlight is scattered by much larger water droplets. These scatter all colours almost equally meaning that the sunlight continues to remain white and so making the clouds appear white against the background of the blue sky.
Why is the sky red at sunset? At sunrise and sunset, the Sun is very low in the sky, which means that the sunlight we see has travelled through a much thicker amount of atmosphere. … The shorter wavelength blue light is scattered further, as the sunlight passes over a greater distance, and we see the longer wavelength yellow and red light.
Is the sky darker at the top of Mount Everest?
At the much higher altitude of Everest’s summit (8,850 m), the sky directly above is very dark blue (almost black) even during the middle of the day when the bright bright sun is high in the sky.
What does the sky look like on top of Mount Everest? On clear days the sky is blue at the top of Everest. On cloudy days it’s grey, and at night it’s black; much the same as everywhere else on earth. Below are a few photos of the summit to illustrate the point.
Why does the sky appears dark at high altitude?
The scattering of the light takes place because of the particles present in the atmosphere. At high altitudes, due to the absence of the atmosphere, the scattering of light does not take place. Hence, the sky appears dark to the passengers flying at high altitudes.
What Colour is water? The water is in fact not colorless; even pure water is not colorless, but has a slight blue tint to it, best seen when looking through a long column of water. The blueness in water is not caused by the scattering of light, which is responsible for the sky being blue.
Is the sky black?
Looking toward the sun we thus see a brilliant white light while looking away we would see only the darkness of empty space. Since there is virtually nothing in space to scatter or re-radiate the light to our eye, we see no part of the light and the sky appears to be black.
Is the sky cyan?
Deep sky blue is an azure-cyan colour associated with deep shade of sky blue. Deep sky blue is a web colour.
…
| Deep sky blue | |
|---|---|
| sRGB B (r, g, b) | (0, 191, 255) |
| HSV (h, s, v) | (195°, 100%, 100%) |
| CIELCh uv (L, C, h) | (73, 83, 234°) |
| Source | X11 |
Why do we never fall off the Earth? A force called gravity is pulling you down towards the centre of the Earth. Anything with mass also has gravity, the more mass something has, the stronger the pull of gravity. … So we don’t fall off the Earth at the South Pole because gravity is pulling us down towards the centre of the Earth.
What makes the sky red? During sunrise and sunset the sun is low in the sky, and it transmits light through the thickest part of the atmosphere. A red sky suggests an atmosphere loaded with dust and moisture particles. We see the red, because red wavelengths (the longest in the color spectrum) are breaking through the atmosphere.
Why do astronauts see space black?
Due to the lack of atmosphere in space, light does not get scattered into its constituent colors in space. On earth, due to the atmosphere, the scattering of light takes place. This is why the sky appears dark instead of blue to an astronaut in space.
Why can’t you see the sun in space? It depends on what exactly you mean by visible, but if you can see the sun (which you can from outer space) then that means it’s light is visible. … In space, or on any planet or moon that doesn’t have an atmosphere, there’s nothing for the sunlight to bounce off of so the sky is always black.
How cold is space?
Hot things move quickly, cold things very slowly. If atoms come to a complete stop, they are at absolute zero. Space is just above that, at an average temperature of 2.7 Kelvin (about minus 455 degrees Fahrenheit).
What does space smell like? As it turns out, several of the astronauts that have gone space-walking have reported a distinct odor at exactly this moment. … Folks have said space smells like hot metal and seared meats.
Why do clouds turn GREY?
The tiny water droplets and ice crystals in clouds are just the right size to scatter all colors of light, compared with the smaller molecules of air that scatter blue light most effectively. … As their thickness increases, the bottoms of clouds look darker but still scatter all colors. We perceive this as gray.
How do you explain clouds to kids?
Do clouds ever touch the ground?
Low clouds form closer to Earth’s surface. In fact, low clouds can even touch the ground. These clouds are called fog.
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