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Deepest image of the universe ever taken in visible light! (pg. 3)
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| Unknown DJ |
| quote: | Originally posted by dj-sean
Seeing as how our solar system is one of hundreds of billions in our galaxy, and our galaxy is one of tens of billions in the observable universe, I'd wager you'd have to be a humongous ing idiot to assume otherwise. |
my thoughts exactly. and people call me an idiot for beleiving in u.f.o's :crazy: |
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| DJYaNiK |
| quote: | Originally posted by Unknown DJ
my thoughts exactly. and people call me an idiot for beleiving in u.f.o's :crazy: |
Speaking of U.F.O.'s...
Picture of SETI signal
No one knows for sure what caused this signal. There is a slight possibility that it just might originate from an extraterrestrial intelligence. The bright colors on the blue background indicate that an anomalous signal was received here on Earth by a radio telescope involved in a Search for Extraterrestrial Intelligence (SETI). A search for these signals is ongoing by several groups including volunteer members of the SETI League. Time labels the vertical axis of the above plot, and frequency marks the horizontal axis. Although this strong signal was never positively identified, astronomers have identified in it many attributes characteristic of a more mundane and ultimately terrestrial origin. In this case, a leading possibility is that the signal originates from an unusual modulation between a GPS satellite and an unidentified Earth-based source. Many unusual signals from space remain unidentified. No signal has yet been strong enough or run long enough to be unambiguously identified as originating from an extraterrestrial intelligence. |
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| TranceMuzik02 |
| Yeh I saw it in the paper |
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| dj-sean |
| quote: | Originally posted by Unknown DJ
my thoughts exactly. and people call me an idiot for beleiving in u.f.o's :crazy: |
Well, even if there is life out there, I'd say it's pretty unlikely that they've found us. I also think they'd have better things to do than abduct US trailer-park trash, lol. |
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| igottaknow |
| Does this picture prove the existence of god? :disbelief :p |
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| SuperFarStucker |
There exists other possibilities in the universe if there at one time existed other sentient life. For example, it could have died off before it ever got advanced enough to make radio signals. Or perhaps they peer into deep space now, just as we do, hoping to find radio signals of distant civilizations. Unfortunately, there lies a great distance between us and it becomes very doubtable to believe that if there exists other sentient/intelligent life that they know of us. They may ponder about life out there, as we do, but lack the concrete evidence. Perhaps, supposing they possessed technology suitable for long distance space travel (which may never exist), and finally got a signal from a solar system like ours, they would come to find we had already died out before the signal had reached them.
In conclusion, even if there is strong evidence supporting the existence of other intelligent life out there, it does not necessarily mean that they will ever know of us. In fact, it seems reasonable to conclude otherwise. |
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| dj-sean |
| quote: | Originally posted by SuperFarStucker
In conclusion, even if there is strong evidence supporting the existence of other intelligent life out there, it does not necessarily mean that they will ever know of us. In fact, it seems reasonable to conclude otherwise. |
This I do agree with. Maybe if we're still kicking a few hundred thousand years from now we'll have found some others. |
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| Ste |
| quote: | Originally posted by Eu4ea
so when we look at something billions of light years away, it's really the very past?? At stars that have long died out? I love these thoughts..
and has it ever been scientifically proven how old/big the universe is??
It's fun doing your head in when a man tries to understad infinity around him, which we can't comprehend.
thanks for the pic! |
imo the best theory to explain the size of the universe is at the outmoust part of the universe all dimensions bend in a sphere so that you would appear at the otherside of the universe. |
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| DJYaNiK |
How many of you believe that the Universe is expanding? Contracting?
And how do you all think it'll end? Collapse? |
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| Omegasox |
| quote: | Originally posted by DJYaNiK
How many of you believe that the Universe is expanding? Contracting?
And how do you all think it'll end? Collapse? |
I used to think it was an oscillating universe, but I'm almost positive after reading up on it, that our universe is expanding and will continue to for an infinite period. As long there are conscious life forms the universe will be there. If life would be utterly wiped out, the universe would still exist in potentia.
I'm hoping they can prove without a doubt there is an extremely large black hole at the center of the universe, but since we're not even certain (without any doubt whatsoever) that black holes exist, I don't see it happening anytime soon. Black Holes just fascinate the hell out of me. :D |
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| SuperFarStucker |
| quote: | Originally posted by DJYaNiK
How many of you believe that the Universe is expanding? Contracting?
And how do you all think it'll end? Collapse? |
| quote: | Originally from "A Brief History of Time
"But which Friedmann model describes our universe? Will the universe eventually stop expanding and start contracting, or will it expand forever? To answer this question we need to know the present rate of expansion of the universe and its present average density. If the density is less than a certain critical value, determined by the rate of expnasion, the gravitational attraction will be too weak to halt the expansion. If the density is greater than the critical value, gravity will stop the expansion at some time in the future and cause the universe to recollapse.
We can determine the present rate of expansion by measuring the volocities at which other galaxies are moving away from us, using the Doppler effect. This can be done very accurately. However the distances to the galaxies are not very well known because we can only measure them indirectly. So all we know is that the universe is expanding by between 5 percent and 10 percent every thousand million years. However, our uncertainty about the present average density of the universe is even greater. If we add up the masses of all the stars that we can see in our galaxy and other galaxies, the total is less than one hundredth the amount required to halt the expansion of the universe, even for the lowest estimate of the rate of expansion. Our galaxy and other galaxies, however, must contain a large amount of "dark matter" that we cannot see directly, but which we know must be there because of the influence of its gravitational attraction on the orbits of stars in the galaxies. Moreover, most galaxies are found in clusters, and we can similarly infer the presence of yet more dark matter in between the galaxies in these clusters by its effect on the motion of the galaxies. When we add up all the dark matter, we still get only about one tenth of the amount required to halt the expansion. However, we cannot exclude the possibility that there might be some other form of matter, distributed almost uniformly throughout the universe, that we have not yet detected and that might stil raise the average density of the universe up to the critical valeu needed to halt the expansion. The present evidence [in 198x] therefore suggests that the universe will probably expand forever, but all we can really be sure of is that even if the universe is going to recollapse, it won't do so for at least another ten thousand million years, since it has already been expanding for at least that long. This should not unduly worry us: by that time, unless we have colonized beyond the Solar System, [or figured a way to exist without a star; even less likely], mankind will long since have died out, extinguished along with our sun! |
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| fr0st |
| quote: | Originally posted by SuperFarStucker
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our planet itself will cool long before the sun cools and upon the suns cooling in its final stage it will engulf the planet eart as it becomes a red giant..... |
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