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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.
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.
Caltech astrophysicist Fritz Zwicky (Swiss) first offered the idea of something that later evolved into dark matter back in 1933. The puzzle hung around for a long time with no action. Then in 1975, Vera Rubin and her fellow staffer Kent Ward stunned the astronomical world. The two were at the Carnegie Institution of Washington's Department of Terrestrial Magnetism. They made the announcement that most stars in a spiral galaxy orbited the galactic center at about the same speed. What's up with that? Let's look. Consider that Mercury orbits the sun in about 88 days. It's close, and it's gotta move fast. Earth makes a trip around the sun in 365 days (plus or minus) 'cause it's farther away. Imagine all planets orbiting the sun at the same speed. Crazy! How is this possible? There'd have to be some kind of "distributed mass - and a lot of it! - to make things "flow" at pretty much the same velocity like they do in a spiral galaxy (or any galaxy). What could this stuff be? Dark matter. And something like three quarters of the universe is composed of it. Amazing! Totally! [The truth is, we don't know what's up with dark matter. We're almost clueless. But the fact is that most of the stars do orbit a spiral galaxy at about the same speed. That is a bulletproof bite of data. No gettin' around it. As gravity is the force responsible for what we see (coupled with the inertia of the stars) what's going on? We're stumped. Want a Nobel Prize? Solve this one. You'll be a lead pipe cinch for one.] A link is provided to our friends at Wikipedia.
We do not actually know that dark matter exists and have no idea what it is if it does exist.
What we see that leads us to think that there is something that we call dark matter is that there is not enough visible matter in galaxies and galactic clusters to account for their observed gravitational coherence. We must therefore postualte that either our understanding of the laws of gravity are deficient or that 75% of the matter in the universe is undetectable/unobservable to us. We call this unobservable matter "dark matter".
If it exists it will occur round galaxies and in the intergalactic web structure.
Upon observing the rotational velocities of galaxies within a cluster, Fritz Zwicky, in 1933, stated that there was a "missing mass" or "dark matter" problem. For some reason, astronomers simply ignored his work for over four decades.
We do not know what dark matter is or even if it actually exists, ITs presence is inferred from the fact that galaxies rotate so fast that they would fly apart if there was not more mass present in them than we can see (hence dark matter). It is thought that if it exists, dark matter will surround galaxies as a sort of halo.
Dark matter makes up a majority of the mass in the universe and can be found orbiting stars, on the edges of galaxies, or traveling freely through space.
it takes up 2 24 hrs i honestly think but if it did then we wouldn't be here
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Is dark matter dangerous?
No, it is invisible, however it got gravity. No one actually come up with a theory that explain what dark matter really do, so there is still a Noble Price waiting for people to come up with a explanation of dark matter.
Who invented the fifth phase of matter?
If you think to Bose-Einstein condensate this type of matter was discovered (not invented) by A. Einstein and S. N. Bose in 1924.
When neutrons were discovered were neutrons created on the experiment?
No because the law of conservation of matter clearly states that matter can NOT be created or destroyed. It can only change it's form.
When did Demorcritus discover things about an atom?
Democritus discovered how to describe invisible atoms as the basics of all matter.
What was the tallest mountain before mt Everest was discovered?
Mt. Everest. It doesn't matter if it was discovered or not. It was still the tallest mountain. -Aura :)
Can dark matter affect seasons?
Dark matter has yet to be discovered or its properties fully understood
Is it true dark matter cannot be seen?
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)
What is the evidence for the existence of dark matter in the universe?
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.
Is dark matter Solid liquid or gas?
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.
Who found dark matter?
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.
How do we know the gravitational effects hypothetically attributed to dark matter are not in fact caused by black holes?
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.
What is a dark matter microscope used for?
A dark matter microscope is used to indirectly detect and study dark matter by analyzing the impact it has on the distribution of visible matter in space. By observing the gravitational effects of dark matter on visible matter, scientists can infer the presence and properties of dark matter particles.
Where is the largest dark matter in the universe?
Dark matter is everywhere, there really is no place that has the most dark matter.
Is dark matter a subatomic particle?
Dark matter is an unknowm form of matter.
What is the scientific term for the opposite of dark matter?
The opposite of dark matter is visible matter.
How strong is dark matter?
Dark matter's strength is proportional to it's mass. This means that more dark matter in one spot is stronger then a little bit of dark matter in that same spot.
What can matter not be?
dark matter
