why does the sun going shining?
602105
It is full of hydrogen and helium and it's full of light particles it shines too much arrrrrrrrrrrgh! I am blind help!!!!!!
372910
When the sun is setting, the position of it results in a mixture of reds, oranges and yellows.  This is because those particular wavelengths are refracted less and therefore seen.  As a result, the other wavelengths (green, blue, indigo, violet) are not seen.  This is also the case in sunrises but sunsets are more brilliant because there are more particles in the air at this time of day (dust, pollution, dirt).  The increase in "substance" in the air results in refraction of ROY to increase.  \nThe dominance of the other three wavelengths (BIV) or (ROY) are seen more as apposed to green.  Remember, when you see color in the sky (either reds, oranges and yellows during sunset/sunrise or blues during midday) this is a mixture ,  so the "in between" wavelength, green, is overridden. \nHowever, there are occasions when you can see green in a sunset for a short period of time.  This is known as "a green flash."  You can read on about this rare phenomenon at: http://hyperphysics.phy-astr.gsu.edu/HBASE/atmos/redsun.html
577006
A rainbow is an optical and meteorological phenomenon that causes a nearly continuous spectrum of light to appear in the sky when the Sun shines onto droplets of moisture in the Earth's atmosphere.
534704
the condensation of water in the air as the air cools and consenses packs closely together and it does not allow the direct sunlight to shine through - however on days when it is overcast you are still likley to get burnt - \npeople tend to skip the sunblock when overcast because there is not direct san light/rays - but the sunlight and rays are still fintering thru - and you tend to get burn worse on overcast days then sunny ones!!!
1131498
The setting sun glows a reddish color on days when there are more particles in the air for the light to be scattered by.\nTypically, because the sunlight has to travel through more atmosphere when it is 4 degrees above the horizon as opposed to when it is directly above, there are already more particles in the air to scatter the light, so the sunset appears orange because the smaller wavelengths of visible light (blue, green, yellow) are scattered away from our eye.\nThe more particles (and the larger they are) that are in the atmosphere (water vapor particles due to humid air, pollution), the more wavelengths of light can be scattered.  So orange will get scattered away leaving only red coming to our eyes.
918082
because the sun has gone over the horizon
1179944
it is strongest between 10am and 2pm.  this is because as the sun rises from the horision the light (and other radiations) are being filtered through more atmosphere. as the sun climbs higher it is comming more directly at you, peeking at noon(ish). Finally as the sun sets it reverses the process and again becomes filtered through more atmosphere.
1027877
Quite a bit has, but the sun still shines through more.
812414
In the morning/evening the sun rays are falling obliquely on to the earth, \nthereby passing through a thicker layer of the atmospheric air because of which (oblique incidence) a lot of its blue component is scattered off \n\nIts 1/lambda^4 scattering - smaller the lambda, larger is the energy scattered off/lost as compared to shorter path transversed during the day time \n\n[This is a standard class XII Physics question]
11578
It's a long winded explanation - see link below.\n\n(snip)\nthe sun's heat acts almost the same as the sun's light — it passes through the air almost as though the air wasn't there.\n\nThis means that almost all of the sun's heat goes into warming up the oceans and the land it hits. As the oceans and ground warm up, they warm the air next to them, and this air warms the air a little higher up and so on. But, as you go higher, there's less and less heat available to go up, and the air gets colder.\n(snip)
190329
A sunspot is a region on the Sun's surface (photosphere) that is marked by a lower temperature than its surroundings and intense magnetic activity, which inhibits convection, forming areas of low surface temperature. Although they are blindingly bright, at temperatures of roughly 4000-4500 K, the contrast with the surrounding material at some 5700 K leaves them clearly visible as dark spots. Next year is expected to be a cyclical peak in the sunspot cycle
58079
the sun is covered by a cloud
661394
it occurs when solar radiation from the sun interacts with the magnetic field around the Earth (its strongest around the poles..so thats why theres a northern..AND southern lights...and no "Middle" lights lol)\n\ni can't wait to see it some day
985287
THe SUN IS NOT BURNING. IT IS MADE UP OF MILLION OF STARS SO IT DOES NOT NEED TO BURN.
105603
WHY IS THE SUNSET RED?\nAs the sun begins to set, the light must travel farther through the atmosphere before it gets to you. More of the light is reflected and scattered. As less reaches you directly, the sun appears less bright. The color of the sun itself appears to change, first to orange and then to red. This is because even more of the short wavelength blues and greens are now scattered. Only the longer wavelengths are left in the direct beam that reaches your eyes.
461917
why does it have to be so dam sunny in Vancouver
1171568
In our lifetimes it will be purely because of the filtering effects of the atmosphere and clouds. When there is dust, water, chamicals or ice in the atmosphere the colours let through will change, just like putting a coloured scarf over a lamp. \n\nWhen the sun is low in the sky the high frequencies are scattered, allowing more of the red-yellow light to reach us.\n\nAlthough the sun is predicted to change colour and grow, it will be over bilions of years.