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Why is Space Black. between the planets and stars, why is SPACE just Black.

2006-12-15 13:02:53 · 19 answers · asked by Anonymous in Science & Mathematics Astronomy & Space

19 answers

actual if you whachd QI you would know that the univers is not black and is infact Bage

2006-12-16 04:03:31 · answer #1 · answered by Michael D 6 · 3 1

Basically, everything everywhere is wiggly bundles of energy zooming in waves or tangled up as matter. See the "Electromagnetic Spectrum". It's called a spectrum because these energy waves can wiggle really fast, like gamma waves, all the way down to really slow, like radio waves that wiggle once only about every 75 miles. We humans can see only a very few of these energy waves. We call that small slice of the Electromagnetic Spectrum, "visible light". Other creatures on this planet can see some of the wave "lengths" that we humans cannot. The waves that we can see appear as colors or white. Here on the sun drenched planet Earth, things that appear black have "fuzzy" molecular edges or surfaces that capture energy waves and don't bounce them back into our eyes so that we can discern the colors or the white. But, we just can't perceive most of the wave lengths of energy in space with our human eyes and electrical nervous systems, so, it appears black. With tools, we can actually "see" all the different waves of energy in the Universe that make up the spacetime fabric of our reality. And, the Universe IS like one big quivering wave of energy. Here is an amazing real photograph that we have recently taken of the beginning of the Universe when all that energy, or, "light" first appeared:

http://www.princeton.edu/pr/pwb/03/0217/

2006-12-15 13:22:16 · answer #2 · answered by Anonymous · 0 1

The regions of the sky that you perceive as black merely lack the materials for the light to bounce off, ie, dust and gas, asteroids and comets. The moon is a perfect example. Sometimes It is really bright in the sky, other times you can't see It because the earth is between It and the Sun and so there is no reflected light.

2006-12-17 02:22:13 · answer #3 · answered by greebo 3 · 0 0

The question of why a sky full of stars is not bright is called "Olbers' Paradox". If the universe is infinitely old, it would follow that the night sky would be bright because of all the light from the other stars reaching us.

If however, the universe is 13-14 billion years old (as is currently thought), then we can only see the light that reaches us from stars that are less than 14 billion light years away. If a star is further away than this, then its light has not reached us yet, we cannot see it, and it does not contribute to the brightness of the sky; when you look up at night, you're looking millions of years into the past.

The proposed answer to this question is one of the evidences for a finite universe, rather than an infinite one.

2006-12-15 13:33:50 · answer #4 · answered by Máirtín 2 · 2 2

It's due to the speed of light. Assuming that in every bit of night sky that you see, there is a star.

The speed of light is finite. It takes time for you to see all of the stars in the sky. Years, millions of years sometimes.


The patches of black in the night sky are places where there might be stars, but they are invisible because the light hasn't reached us yet.

It is similar with stars that we can see; those stars might have died already, and we might not know about it for years. Or centuries.

2006-12-15 16:57:45 · answer #5 · answered by Murasaki no Ryuu 1 · 0 0

Black is what our brain registers when the is an absence of light. (Close your eyes and ingnore you dreams) Aside from light generating sources (stars etc.) there is no light in space. These sources are fairly sparse as compared to the volume of space as a whole, thus space appers mostly black.

2006-12-15 13:09:55 · answer #6 · answered by walter_b_marvin 5 · 2 1

Black is the absence of light. Space is very big and mostly empty so you see black.

2006-12-15 15:29:59 · answer #7 · answered by Roman Soldier 5 · 0 0

the same reason everythings black when no one is doing anything

space is just someones closet because if people wernet gonna do something worth all the confusion then people would spend so much time confusing each other so much more its like in the bible how they believe every one is christ's{the sun of god}
bride

well that because this is gods brides gift and they wrote that that way when we all go to meet everyone we can go with space

2006-12-15 13:23:11 · answer #8 · answered by Anonymous · 0 2

Black is not a color, but a total absence of light. Black or dark objects do not reflect as much light as they absorb.

Therefore, since there's nothing in space that scatters light particles or waves, like our atmosphere here on earth, (it's a vacuum), light is neither absorbed nor reflected.

It is black because it is an absence of light.

2006-12-15 13:06:10 · answer #9 · answered by Исаак Озимов 3 · 4 2

To light it up would be a real waste of energy. It would be like leaving all your house lights on whilst you were out for most of the night. God didn't want to waste energy since it is mostly empty.The opposite of light is dark-so there is your answer-the absence of light.

2006-12-15 14:24:04 · answer #10 · answered by Birdman 7 · 0 1

Space does not emit light!

2006-12-17 01:42:40 · answer #11 · answered by Billy Butthead 7 · 0 0

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