This is me................not answering.
2006-07-13 15:24:09
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answer #1
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answered by LindaLou 7
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Nobody knows. We know that the universe is about 14 billion years old. The way that we know that is because the most distant objects that we can see are about 14 billion light years away... so that is all the time that the light from distant objects has had to reach us. However, we have no way of knowing how far the universe extends beyong that.
I saw where someone responded that the universe was a couple hundred light years in size, based on his "knowledge of astronomy." LOL. Our own Milky Way galaxy is somewhere around 100,000 light years in diameter.
There are about 100 billion galaxies in the VISIBLE universe, containing (on average) about 200 BILLION stars each.
The Hubble Space Telescope, and other modern telescopes, have photographed stellar nurseries, where new stars are being born as we speak. Also, within the past few years, they have found huge clouds, tens of light-years in size, of organic chemicals... the building blocks of life.
So... there are about 200,000,000,000,000,000,000,000 stars in the visible universe. Recent discoveries of planets orbiting other stars now lead astronomers to believe that planets are quite a common feature of stars... the RULE, rather than the exception. So, if only 50% of the stars were accompanied by planets, that would mean that there are over 100,000,000,000,000,000,000,000 planets... probably MANY times more than that, since that only presumes 1 planet per star. If those solar systems are anything like ours, it would probably mean there are over 500,000,000,000,000,000,000,000 (500 billion-billion) planets in the visible universe... over 500,000,000,000 (500 billion)in our galaxy alone.
And I think that we will soon discover that life is as common as dirt in the universe.
2006-07-13 22:51:26
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answer #2
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answered by Anonymous
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You wrote, "If you do not know, do not answer!!!"
That is amusing. You are asking people to tell you that they do know, which would be nonsense, since no one knows.
At the present time the question can not be reliably answered.
There is no reason to think that "string theory" (which is NOT a theory) can explain its way out of a shoe box, let alone tell us how big the universe is.
2006-07-13 22:31:14
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answer #3
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answered by Alan Turing 5
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That's a scientific question. The general consensus at this point is that the universe has been continually expanding since the "Big Bang" and is still expanding.
2006-07-13 22:22:18
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answer #4
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answered by jakejr6 3
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We create the universe in our awarness.
Each time we figure out a way to look farther more is created by us to see.
This seems impossible to you because you think the universe exists external to your awareness.
This is not the case
2006-07-13 22:30:44
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answer #5
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answered by Anonymous
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Infinity.
2006-07-13 22:20:41
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answer #6
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answered by Shayna 6
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The universe is constantly expanding so its impossible to measure its size
2006-07-13 22:21:46
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answer #7
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answered by jeff a 2
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From what I have read, there is no beginning or end to the universe.
2006-07-13 22:22:28
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answer #8
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answered by Anonymous
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Infinite. There are glaxies of galaxies we are not aware of and there has to be muhc more because what would be beyond the universe then?
2006-07-13 22:22:59
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answer #9
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answered by SweetTina 3
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you can not measure the universe by size, the concept may seem crazy but... well that as much as i can answer...string theory has some enlightening ideas
2006-07-13 22:22:16
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answer #10
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answered by shteve 2
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I was going to answer the question but then you said not to...
2006-07-14 00:05:08
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answer #11
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answered by Gamla Joe 7
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