Gases and pwrite-ups in Earth"s environment scatter sunlight in all directions. Blue light is scattered even more than various other colors bereason it travels as shorter, smaller sized waves. This is why we see a blue sky the majority of of the moment.

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Like most curious people, you have probably asked at some time, “Why is the skies blue?” Or if you witnessed a beautiful suncollection or sunincrease, you might have actually asked, “Why is the sky red?”

It’s so apparent that the sky is blue, you could think the reasons would certainly be simply as noticeable. They aren’t! Of all the colors of the rainbow, why blue?

Couldn’t the sky just as easily be green? Or yellow? When we check out a rainbow, we do view green and also yellow in the sky, as well as blue, violet, orange, yellow, red, and every little thing in between.

The white light coming from the Sun is really made up of all the colors of the rainbow. We watch all those colors once we look at rainbows. Raindrops act as tiny prisms as soon as lit by the Sun, bending light and also separating it into its different colors.


Credit: USGS

As the Sun gets reduced in the skies, its light passes via more of the setting to reach you. Even more of the blue and violet light is scattered, allowing the reds and yellows to pass directly with to your eyes without all that competition from the blues.

Also, larger pposts of dust, pollution, and water vapor in the setting reflect and also scatter more of the reds and yellows, occasionally making the whole western skies glow red.


Sunlight carries the power that heats Earth and powers all life on Earth. Our climate is influenced by just how sunlight is scattered, reflected ago to space, or soaked up by woodlands, deserts, snow- and also ice-covered surdeals with, different forms of clouds, smoke from forest fires, and also other pollutants in the air.

Just as Earth"s environment bends and also scatters light that passes via it from the Sun to the surface, the setting affects light reflecting off the surchallenge earlier into area.

Artist rendering of GOES in orlittle over Planet.

That is why satellites have the right to perform what is referred to as remote sensing from room and also reveal an excellent deal around the surchallenge and around the environment. Instruments on satellites such as the GOES, pictured over, can measure the intensity of light of different wavelengths. Analyzing that indevelopment, atmospheric scientists uncover out surchallenge and atmospheric temperatures, levels of carbon dioxide, water vapor, pollutants, ozone, and also various other trace gases.

GOES takes excellent benefit of our atmosphere"s affect on light to help us foreactors the weather and also understand and also take treatment of our earth.

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The following generation of GOES satellites, referred to as the GOES-R series, will have even much better imaging capabilities. The GOES-R series of weather satellites are emerged by NOAA and also NASA. The initially satellite in the series, GOES-16, launched in 2016.