If light travels at a certain speed, and there are so many stars out there, shouldn't the universe be lit up like a light bulb instead of having a black backdrop?
2007-04-14 19:22:26 · 10 answers · asked by my ki 4 in Science & Mathematics ➔ Astronomy & Space
Light is seen as a reflection off any object. Since outer space is mostly a vacuum, there are no particles off which the light can reflect and therefore be seen.
2007-04-14 19:36:32 · answer #1 · answered by Stratman 4 · 0⤊ 0⤋
your question is popularly called as the Obler's paradox. the sky has infinite stars but the light from the oldest stars(created 1million years after big bang) must be billions of light years away and the light from those stars are still travelling in sky it's just that it did not have enough time to reach the other end of the universe since the big bang. it would take a million billion years to make the sky like you wanted .......
2007-04-14 20:39:11 · answer #2 · answered by stranger 2 · 0⤊ 0⤋
Great question. It's a fundamental issue: " if there are an infinite number of stars, why isn't the night sky bright?". The answer is that space is not densely populated with stars and there is a lot of distance between them (and us). So even though there are a lot of light sources, they are on average, very far away and dispersed. In some galaxies and in some locations, the 'night' sky would be quite bright however.
2007-04-14 19:27:01 · answer #3 · answered by squeezie_1999 7 · 1⤊ 1⤋
If the human eye can see the light, the light is there, no matter how far it had to travel to get here. The reason the sky is dark is that there is nothing to reflect the light for us to see. Space is mostly empty compared to what the mind may imagine. Asteriods, satellites, the moon, we see these because the sun reflects off of them. No object to reflect light, no light seen.
2007-04-15 01:33:36 · answer #4 · answered by orion_1812@yahoo.com 6 · 0⤊ 0⤋
maybe because light from stars takes years before it the earth's atmosphere. also stars are far from each other.
nobody knows the exact measurement of the universe so it is still a mistery if stars are really that many to be able to generate bright lights.
Light take years before it reached earth so it is possible at along the way it might get block by other celestial objects.
2007-04-18 18:33:44 · answer #5 · answered by Evan 3 · 0⤊ 0⤋
Today in Glasgow UK the sky is overcast with heavy greyish/white cloud as its raining, where the white cloud is there is a very faint hue of azure blue, on a good day when its clear its the lovliest shade of blue I know very bright yet gentle on the eyes quite like the colour of the sea but when its not to shallow or too deep the inbetween blue if ya know what I mean....
2016-04-01 02:20:02 · answer #6 · answered by Anonymous · 0⤊ 0⤋
like seeing lights from a city at night, if closely together lights in total would make area appear brighter, but if more distance apart just points of light cause light is all dispersed in different directions, why laser beam more effective at pointing light at object then flashlight
2007-04-14 19:35:39 · answer #7 · answered by Courageous Capt. Cat 3 · 2⤊ 1⤋
good question, I wish you could reply, I hate that no one can really talk about their questions, but light is only visable as it reaches our eyes and the further away it is, my guess is that it gets thiner and thiner as it is spread out, like a spot lights light is not visable anymore when the focoused beam is to spread out and shined on somthing to faraway.
hmmm, I hardly know if that is right, but sounds good to me!
2007-04-14 19:33:01 · answer #8 · answered by Anonymous · 0⤊ 1⤋
Most stars are so far away that you can't see the light they are providing with the naked eye
2007-04-14 19:32:34 · answer #9 · answered by Bernard W 4 · 0⤊ 1⤋
Here is your first clue, distance between the aforementioned objects
2007-04-18 08:41:23 · answer #10 · answered by Anonymous · 0⤊ 0⤋