Dark matter wasn't "discovered" by any one person or group. In fact it is still hypothetical and there is no solid proof for its existence. Various astronomers inferred the existence of dark matter from what they observed about galaxies and galaxy clusters. It is still very much a mystery and the subject of some serious research.
Dark matter has yet to be discovered or its properties fully understood
You will find it interesting that in fact dark matter has not yet been discovered. We are trying hard to observe evidence of dark matter, but it is not revealing itself at this time. It is theorized to be there, based on what we know about how the galaxies are moving and how they are interacting with one another. Dark matter is a theory waiting for verification.
Yes this is true. We have recently discovered dark matter exists with the help of the Hadron particle collider, but can not see dark matter. (not yet any way)
The evidence for the existence of dark matter in the universe includes the extra mass of Galactic clusters discovered by Fritz Zwicky, and the spinning galaxies which rotate at the same speed as discovered by Vera Rubin.
We know that anti-matter exists; we can make it, although in VERY tiny quantities. "Dark matter", on the other hand, is still only a theory, and we've never discovered any - or at least, not that we can be certain of.
We do not know as we have not found any dark matter to examine. The only way we detect it and know it exists is due to its gravitational attraction of the ordinary matter we can see. One speculation when neutrinos were discovered to have tiny nonzero masses was that dark matter might be neutrinos. Another speculation is that dark matter is only ordinary matter, but its in another separate universe in a shared higher dimensional spacetime. Nobody knows.
No one has discovered dark matter. Dark matter is a concept to explain the rotation of galaxies. We simply do not know what it is and where it is. When we looked at nearby spiral galaxies astronomers could not explain how individual stars could be moving so fast. If you add all the mass of the material we can see or infer the gravity should not be able to hold the stars in orbit. They should be streaming off. Dark matter was invented to explain this. The theory suggest that 60 to 90% of the matter in the galaxy needs to this strange dark matter.
Too little is known about dark matter to speculcate on this.
Dark matter is everywhere, there really is no place that has the most dark matter.
Aristotle discovered matter
At present we don't know what dark matter IS, let alone how fast it moves. In discussing hypotheses about dark matter, scientists have developed the terms "cold" dark matter, "warm" dark matter, and "hot" dark matter; with the "hot" hypotheses viewing dark matter as moving faster than it would if it were "cold."
Dark matter is an unknowm form of matter.
Lippershey first discovered a dark-line spectrum.
There's no such thing as a "dark matter microscope." The whole point of dark matter is that it doesn't interact with electromagnetic radiation... if it did, it wouldn't be dark matter.
it was Aristotle who was a greek thinker and discovered matter
That's easy! We don't. So far, no sign of the proposed "dark matter" has been discovered, nor have the properties of "dark matter" been firmly defined. The concept is still evolving, and will do doubt be extensively modified in the coming years.
4% normal matter 23% dark matter 73% dark energy
The opposite of dark matter is visible matter.
Dark matter does. Dark matter is a strange thing that can only be detected by watching how light travels to us from distant stars. Light will navigate around dark matter to reach its destination. Dark matter is also how galaxies stay stable.
the kinetic theory of matter was discovered in 1616
Stars emit light. By definition, "dark" matter does not. Thus, dark matter can not be stars.
1% - Matter and Anti-matter 23% - Dark matter 76% - Dark energy
I presume the question you are asking is, "In what state of matter is 'dark matter'?" The answer is simple: we don't know, because we don't know what dark matter consists of. Dark matter might be closest to a gas, but it just as likely to be closest to a solid. Until we learn what dark matter IS, we can't get a good idea on what state of matter it most closely resembles.
There is about 5 times more dark matter than "normal" matter (the matter we are familiar with). The percentages are estimated as follows: the Universe is made up of 4% normal (a.k.a. baryonic) matter, 23% dark matter, and 73% dark energy.