y cant you see outer space when u look up at the blue sky...?
354871
Because it's blue. . .\n\nWhen sunlight travels through the atmosphere, blue light scatters more than the other colors, this makes sunlight and visable sun rays a yellow-orange color. The scattered light makes the sky blue; the transmitted light makes the sunset reddish orange.\n\nBecause this scattered light is so brightly blue we cannot see through the atmposhere into space. . .only at night when there very minimal light to refract seeing as how the sun had set is on the other side of the planet!
264522
The healthy human eye is only restricted by external factors (ie.: poor visibility due to haze, dust or fog), just think how far the stars are!
119190
Technically yes, you would be able to see to the edge provided nothing was obscuring your view (like buildings or trees).  The problem is that dust, water vapor, and other impurities in the atmosphere would place some limitations on how far you could see.
336150
Why is the sky blue ?  Why is the sun yellow ? That is a very logical question guy please, lemme see um cause maybe JUST MAYBE if we do it standing up like you guys, how do I put this umm not a pretty picture right ?  so duh !
330302
Light is a kind of energy that can travel through space. Light from the sun or a light bulb looks white, but it is really a mixture of many colors. The colors in white light are red, orange, yellow, green, blue and violet. You can see these colors when you look at a rainbow in the sky. \n\nThe sky is filled with air. Air is a mixture of tiny gas molecules and small bits of solid stuff, like dust. \n\nAs sunlight goes through the air, it bumps into the molecules and dust. When light hits a gas molecule, it may bounce off in a different direction. Some colors of light, like red and orange, pass straight through the air. But most of the blue light bounces off in all directions. In this way, the blue light gets scattered all around the sky. \n\nWhen you look up, some of this blue light reaches your eyes from all over the sky. Since you see blue light from everywhere overhead, the sky looks blue. \n\nIn space, there is no air. Because there is nothing for the light to bounce off, it just goes straight. None of the light gets scattered, and the "sky" looks dark and black.
713708
Maybe you could make use of a giant mirror orbiting directly above you geostationarily in space.\n\nSo you could see your house... from the sky. :)
831436
I have never seen a ufo, but every once in a while there is a small bluish purple dot in the sky that looks like a purple pink-blueish star, it flashes and is really odd. I looked at maps and everything, there are no little radio crappy shows, or anything. in fact it's a big field in nowhere, it's scary. I'm too chicken to drive out there and see what it is. It's creppy where I live.
389534
it is because of tyndall effect as the blue clour as a longer wave length in the spectrum of colours it gets scaterd more in the sky \n \n     \nmxwltan\n6 minutes ago\n\n\n \n The Earth's sky is blue because the air molecules (largely nitrogen\nand oxygen) are much smaller than the wavelength of light. When light\nencounters particles much smaller than its wavelength, the scattered\nintensity is inversely proportional to the 4'th power of the\nwavelength. This is called "Rayleigh scattering," and it means that\nhalf the wavelength is scattered with 2**4 = 16 times more intensity.\nThat's why the sky appears blue: the blue light is scattered some 16\ntimes more strongly than the red light. Rayleigh scattering is also\nthe reason why the setting Sun appears red: the blue light has been\nscattered away from the direct sunlight.\n\nThus, if the atmosphere of another planet is composed of a transparent\ngas or gases whose molecules are much smaller than the wavelength of\nlight, we would, in general, also expect the sky on that planet to\nhave a blue color.\n\nIf you want another color of the sky, you need bigger particles in the\nair. You need something bigger than molecules in the air---dust.\n\nDust particles can be many times larger than air molecules but still\nsmall enough to not fall out to the ground. If the dust particles are\nmuch larger than the wavelength of light, the scattered light will be\nneutral in color (i.e., white or gray)---this also happens in clouds\nhere on Earth, which consist of water droplets. If the dust particles\nare of approximately the same size as the wavelength of light, the\nsituation gets complex, and all sorts of interesting scattering\nphenomena may happen. This happens here on Earth from time to time,\nparticularly in desert areas, where the sky may appear white, brown,\nor some other color. Dust is also responsible for the pinkish sky on\nMars, as seen in the photographs returned from the Viking landers.\n\nIf the atmosphere contains lots of dust, the direct light from the Sun\nor Moon may occasionally get some quite unusual color. Sometimes,\ngreen and blue moons have been reported. These phenomena are quite\nrare though---they happen only "once in a blue moon...." :) The dust\nresponsible for these unusual color phenomena is most often volcanic\nin origin. When El Chicon erupted in 1982, this caused unusually\nstrongly colored sunsets in equatorial areas for more than one year.\nThe much bigger volcanic explosion at Krakatoa, some 110 years ago,\ncaused green and blue moons worldwide for a few years.\n\nOne possible exception to the above discussion is if the clouds on the\nplanet are composed of a strongly colored chemical. This might occur\non Jupiter, where the clouds are thought to contain sulfur, phosphorus,\nand/or various organic chemicals.\n\nIt's also worth pointing out that the light of the planet's primary is\nquite insignificant. Our eyes are highly adaptable to the dominating\nillumination and perceive it as "white," within a quite wide range of\npossible colors. During daytime, we perceive the light from the Sun\n(6000 K) as white, and at night we perceive the light from our\nincandescent lamps (2800 K, like a late, cool M star) as white. Only\nif we put these two lights side-by-side, at comparable intensities,\nwill we perceive a clear color difference.\n\nIf the Sun was a hot star (say of spectral type B), it's likely we\nstill would perceive its light as "white" and the sky's color as blue
398924
Interesting question. Our humans eyes only see blue, but in fact there is a myriad of colors in the sky projected by the sun's rays. I think the other colors are in the ultraviolet spectrum, but I'm not entirely sure
32451
Actually, despite what has already been said...you can. However, define "see". It is very difficult, if not impossible to see with the naked eye, but can easily been seen using hi res cameras on satellites.\n\nSee here from the European Space Agency:\n\nhttp://www.esa.int/SPECIALS/Proba_web_site/SEMTTHGHZTD_2.html
585811
This question may be interpreted in two ways.  First, why is the sky not blue at night?  The answer for that is that the sky appears blue during the day because it scatters high energy sunlight.  The atmosphere scatters high energy starlight as well, but there isn't enough of that to make the sky appear blue.\n\nThe other interpretation is why is the sky not totally lit by stars?  That is actually a very important question that was pondered by famous astronomers.  It is called the Dark Night Sky Paradox, or Olbers' Paradox, and was contemplated by such notables as Halley and Kepler as well as the eponymous Heinrich Wilhelm Olbers.  If the universe is of infinite age (as was once assumed) and static, and the stars have had eternity to shine, shouldn't the sky be lit?  \n\nSome people hypothesized that the stars did not appear randomly in all directions.  (So the stars are arranged in straight lines with the Earth at the center so that starlight piles into intervening stars, and there are empty gaps?  Even before Hubble proved that "dark sky" is teeming with distant galaxies, that sounded stupid.)  Others said that dust in the way absorbed starlight.  But after an eternity of absorbing starlight, wouldn't the dust glow as well, and light up the night sky?\n\nThe fact that space is dark turns out to be proof in part that the Universe is not infinite, eternal, and static.  That in fact it had a beginning point in time and space and the Universe is changing.
476620
The sky is blue because it would be ugly red....JK. The sky is blue because of all the mixes of gases in the atmosphere.  ;)
86349
Blue is the color that is reflected from the atmosphere--alll over colors are absorbed...Light is divided into the colors of the spectrum and each color has it's own specific wavelength.....so the wavelength for "blue light" is reflected and not absorbed and that is why you see a blue sky.
229092
when u see a clear sky
1147123
Depends on your definition of the sky. The "sky" or portion of the atmosphere that deflect the blue wavelength of light is in a sphere around the earth about 350km high. So if you look North, South, East or West the sky never ends, but if you look straight up it ends and space begins at about 234 miles up.
50704
If you go to http://maps.google.com/ and click 'Satellite,' you can view and zoom in on Asia. If you download Google Earth (http://earth.google.com/), you can see an even more detailed view from outer space.
530719
During daylight the sky has the appearance of an opaque blue surface, but this is the result of the air scattering sunlight. [1]There is no "blue object" above the earth in any normal sense, so it is hard to say what object the sky is. The sky is thus sometimes defined as the denser gaseous zone of a planet's atmosphere. At night the sky has the appearance of a black surface or region scattered with stars. But if we then say that the sky is the entire visible universe, it would not be the same thing we see during the day. The color of the sky is a result of diffuse sky radiation.\nDiffuse sky radiation is solar radiation reaching the earth's surface after having been scattered from the direct solar beam by molecules or suspensoids in the atmosphere\nThe sky is blue partly because air scatters short-wavelength light in preference to longer wavelengths. Where the sunlight is nearly tangent to the Earth's surface, the light's path through the atmosphere is so long that much of the blue and even yellow light is scattered out, leaving the sun rays and the clouds it illuminates red, at sunrise and sunset.