Visible sunlight comes in all the colors of the rainbow.
The light that shines directly down from the Sun on us
appears yellowish white (CAUTION: NEVER LOOK DIRECTLY
AT THE SUN!). However, some sunlight reaches our atmo-
sphere and is reflected off of dust and gas molecules,
and is scattered back TOWARD people on the Earth's surface.
The dust and gas is better at scattering blue light than
red: that is the why the sky usually appears blue, since
it comes back to us, and the red light escapes into space.
However, near sunrise and sunset, if you look toward the
horizon (especially near the Sun), the sky gradually appears
more and more yellow, and finally red. What you are seeing
is now the OPPOSITE: you see light that ISN'T scattered,
and it appears red. Near the horizon, you are looking through
a lot of dust and gas, and much more blue light is thus
scattered AWAY from us.
2007-02-24 09:02:37
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answer #1
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answered by cruiser 4
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Visible sunlight comes in all the colors of the rainbow.
The light that shines directly down from the Sun on us
appears yellowish white (CAUTION: NEVER LOOK DIRECTLY
AT THE SUN!). However, some sunlight reaches our atmo-
sphere and is reflected off of dust and gas molecules,
and is scattered back TOWARD people on the Earth's surface.
The dust and gas is better at scattering blue light than
red: that is the why the sky usually appears blue, since
it comes back to us, and the red light escapes into space.
However, near sunrise and sunset, if you look toward the
horizon (especially near the Sun), the sky gradually appears
more and more yellow, and finally red. What you are seeing
is now the OPPOSITE: you see light that ISN'T scattered,
and it appears red. Near the horizon, you are looking through
a lot of dust and gas, and much more blue light is thus
scattered AWAY from us.
2007-02-24 09:07:37
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answer #2
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answered by Anonymous
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Good question. Here is the scientific answer. At sunrise and sunset when the white beam of sunlight must traverse through the longest length of atmosphere scattering by air molecules removes the blue light, leaving the longer wavelengths of red, orange, and yellow to pass on through creating the ruddy sunrise or sunset. It is simply due to scattering by molecules (called Rayleigh scattering) and/or aerosols (called Mie pronounced Me scattering). Hope this helps.
2007-02-24 09:11:58
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answer #3
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answered by 1ofSelby's 6
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it really is observed as an Aurora and theycan be observed in the course of the international it really is like the nothern lights in alaska lots of the time they're no longer seen to the bare eye Auroras are the end results of the emissions of photons interior the Earth's higher ecosystem, above 80 km (50 miles), from ionized nitrogen atoms regaining an electron, and oxygen and nitrogen atoms getting back from an excited state to floor state. they're ionized or excited by the collision of image voltaic wind debris being funneled down and speeded up alongside the Earth's magnetic field lines; excitation power is lost by the emission of a photon of sunshine, or by collision with yet another atom or molecule:
2016-12-04 21:47:38
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answer #4
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answered by lemmer 4
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Well it sounds like pollution. If you have ever been to Pheonix you can see the pollution in the air during the day and it is red and orange. It really comes out at night though.
2007-02-24 09:09:10
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answer #5
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answered by The BecaNATOR 5
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I live in Arlington Texas and the sky looks like that right now, It also looks like if it is dusty, and something like a dust storm is going to happen, , but it looks that way for various reasons...
2007-02-24 09:09:21
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answer #6
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answered by Anonymous
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It's just light scattering off dust and water droplets in the air
2007-02-24 09:01:16
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answer #7
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answered by Anonymous
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Not sure why but the old saying goes "Red sky at night, sailor's delight. Red sky in morning, sailors take warning." It's always worked for me :)
2007-02-24 09:02:43
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answer #8
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answered by justpeachee22 5
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it is the pollution in the air that makes the moon look red or orange it looks very beautiful but it is a bad sign
2007-02-24 09:02:55
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answer #9
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answered by scytherbug@sbcglobal.net 3
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gonna have a nice thunderstorm, it's red and grey right now, been storming all morning and afternoon
or it could be snow on its way
2007-02-24 09:06:50
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answer #10
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answered by Anonymous
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