why is sky blue and space black how high up before it goes black?

Question

and how come you never see shots off the sun in clips from space

Answer 1

Our sky is colored because our atmosphere makes blue light when sunlight passes through it. This phenomenon is called "scattering." It is similar to when sunbeams reveal themselves in the presence of dust, most spectacularly in cathedrals. The atmosphere causes the sky to be colored.

Moonrise with blue scattering caused by earth's atmosphere, photographed from the orbit of Space Shuttle Discovery in 1999.

Earthrise with black sky since there is no atmosphere, photographed from the orbit of Apollo 11 in 1969.

If there were no atmosphere, the sky would appear black, like the lunar sky in Apollo pictures taken from the moon. But even a black sky has some lightness... Even at night, the sky always has a faint color, called "skyglow" by astronomers. Atmospheres also cause skyglow from faint airglow in the upper atmosphere (a permanent, low-grade aurora), and starlight scattered in the atmosphere. Even if there were no atmosphere, faint skyglow is caused by sunlight reflected off interplanetary dust (zodiacal light), and background light from faint, unresolved stars and nebulosity.

Answer 2

The sky is blue (and the sun appears yellow) because of Rayleigh scattering - that is, gaseous molecules will tend to scatter bluer light and let redder light pass through. This is most easily visible during a sunset - light from the sun is extremely reddened, and tiny portions will sometimes get a green tinge.

Larger particles scatter light equally, in a process called Mei scattering. That's why fog and clouds are white.

Space is black due to the raw expansion of space - there is an ever-increasing amount of distance between galaxies, which redshifts and rarefies the light they put off, making it appear (for us) 'black'.

It 'goes black' gradually, and is somewhat dependent on where you're looking.

Answer 3

Sunlight scattered from air molecules makes the sky blue. It starts to look pretty dark at only 10 miles up and looks totally black at 50 miles up. And you do sometimes see the Sun in pictures from space (see the source), but, just like on Earth, they usually try to keep the Sun out of the picture so it doesn't damage the camera or mess up the exposure.

Answer 4

The daytime sky is blue because molecules in the atmosphere scatter blue light more than red, and the Sun is very, very bright. The more atmosphere, the more scattering. On high mountains (5000 meters) the sky is notably darker. At an altitude of 50,000 meters, it is essentially black even in the daytime.

The sun is so bright that it is hard to take a photo that includes the Sun and still shows anything else.

Answer 5

re: why you never see shots of the sun in clips from space -
Normally you won't see the sun in pictures of other objects, because of the problem of exposure - an exposure short enough not to be completely exposed by the sun won't show other objects at all. So, NASA photographers, probes equipped with cameras, and the Hubble avoid getting the sun in the shot (the Hubble won't point anywhere near it).
There have been some shots taken from space involving the sun, but it's usually not the full disc of the sun.

Answer 6

You can achieve the same effect by shining white light into a prism. It splits the light into all the colors of the rainbow. The light comes in white and is split when it enters the atmosphere. The sky can be many colors depending on what is in the atmosphere. We tend to get predominantly blue and reddish yellow light. Plants thrive on the blue light during growth and thrive on the reddish- yellow light for flowering. Each color of the rainbow is a different frequency just like all the keys on a piano. Light is a wave as much as a sound wave and it follows the same universal laws as music does. It has notes and each note is a different color just like in music ..each note is a different sound.

Answer 7

I am sure that yuou have noticed that the sky is blue when the sun is above or nearly above the horizon. And it is black when the sun is not ablve the horizon. This should give you a very big clue as to what causes the blue color. Something to do with light and air. You go on from here

Answer 8

The higher you go, the less atmosphere there is to diffract the sunlight. Depending on temperature and pressure, the amount of diffraction will vary, and the blueness of the sky will be affected.

I'm not sure what you mean about pictures of the sun; there've been plenty.

Answer 9

the sky is blue because water has a blue tinge, the sky is the refractory light coming from the sun bouncing into the water and back out,......how high for it to go black...once you are not looking at the light bouncing back into our atmosphere it is black in space

Answer 10

i'm undecided of an exact element, however the digital camera on Felix Baumgartner's tablet needless to say confirmed a black sky and he became into around a hundred,000 feet. (19 miles) i've got self assurance at that element.