This is not Stephen Hawking's proffessional opinion, but here is basically what i know about dark matter.
Basically its just matter that doesnt reflect light, therefore we can not see it. We believe that over 99% of all matter in the universe is dark matter, because basically scientists think that once the universe gets so spread out, the universe will not be able to support itself, and will collapse on itself.
Dark matter comes in because that point has well surpassed itself so scientists, who are 100% convinced that they have the expansion thing right, think that there must be matter in the universe that we cannot see; cannot reflect light.
I personally do not believe in matter, and believe that we are overlooking something else. Either we underestimated the size of the universe, the speed which things are going, the concept that the universe will collapse on itself, or something that i might not know about that factors in to the need of dark matter.
Im not sure how much of this you already knew, so if this is all more of the same, im sorry, but so many people arnt familiar with the concept of dark matter.
2006-08-22 14:44:22
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answer #1
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answered by Adam 4
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Some scientists have proposed alternative theories for gravity where it is stronger on intergalactic scales than predicted by Newton and Einstein, removing the need for dark matter. However, such theories cannot explain the observed effects of this collision.The hot gas in this collision was slowed by a drag force, similar to air resistance. In contrast, the dark matter was not slowed by the impact, because it does not interact directly with itself or the gas except through gravity. This produced the separation of the dark and normal matter seen in the data. If hot gas was the most massive component in the clusters, as proposed by alternative gravity theories, such a separation would not have been seen. Instead, dark matter is required.
If it hasn't been answered then there's room for few NEW theories.... I wonder what effect these results Will have on theories at the quantum level ?
2006-08-22 21:59:32
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answer #2
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answered by Red 5
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We know that dark matter exists, because we can see its effects by observing how its gravity affects nearby stars, but we don't know what it is or how it works. So no, there is still a lot of mystery about it. For all we know dark matter could be the physical manifestation of rebel angels. And then there's dark energy, the polar opposite of dark matter, we don't know what that is either.
2006-08-22 15:54:34
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answer #3
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answered by Isis-sama 5
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he's between the Rev Einsteins umpteen sock puppet debts. they arrive out in his help, saying unfavourable precise wing crap like "Yeah atheists won't be able to cope with the reality" or "I easily have were given 3 college stages and that i'm a creationist" or some quote from a survey from 1820 or a itemizing of little universal technology experts from united statesa. who say they're creationists
2016-11-26 23:50:55
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answer #4
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answered by ? 4
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The answer to dark matter is not answered yet ....
Dark matter is just a theory ... not proved yet ....
Big Bang and Plasma universe are Theories .... not proved Yet ...
String Theory is a theory .... not proved yet ....
Someday ... a better theory will be made that match the experiences and the observations ..... and this theory will also be replaced ...... and so ...
There is no real answers in Physics ....
2006-08-22 14:53:13
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answer #5
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answered by jimy86Leb 2
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No, he does not. While we all agree there is dark matter, no one knows what it is.
2006-08-22 14:08:10
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answer #6
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answered by kemchan2 4
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