What is really Dark Matter.? And what is it really like.?

Answer 1

The theory of dark matter is the scientific communities equivalent of someone caught in a lie trying to b.s. their way out of it. Basically, all of our computations on how much matter there should be in the universe doesn't come close to all of our computations on how much matter there actually is in the universe. Our computations show that there is not enough matter in the universe to keep it from flying apart. Planets, suns, galaxies, shouldn't be possible. So the scientists said, hmmm... Well, 80% of the matter in the universe is DARK matter, matter we can't see or otherwise detect. That's it, yeah. The don't want us to think that they really DON'T know what happened in the first three seconds of the universe, like they claim...

I am not surprised, however, that our calculations show that the universe should not be able to hold itself together...

"God's Son has all the brightness of God's own glory and is like him in every way. By his own mighty word, he holds the universe together." - Hebrews 1:3 (CEV)

There is the answer to dark matter - Jesus holds the universe together.

Answer 2

Dark matter is material that interacts with “ordinary matter” only through gravity—not through other forces. Matter we can see (i.e., it ain’t dark) interacts with our telescopes and our detectors and our eyeballs through electromagnetic forces (e.g., light or what astronomers would call “electromagnetic radiation”), but we can detect the gravitational effects of more stuff that we cannot see… We only see the effects of dark matter over very large distances: the main evidence comes from galaxies that are rotating “too quickly,” clusters of galaxies that should have flown apart except for the influence of unseen matter, and the speedy formation of complex structures in the early history of the Universe.

What is dark matter really like? Well, that’s hard to say. Because it doesn’t interact with electromagnetic forces, we have no tools to study it. Perhaps there are subatomic particles we’ve never observed. Maybe there are lots of rogue planets or cold dark stars out there that we can’t see. But it should be noted that once we can confirm the existence of such things, then we simply move some of the mass of the Universe into a different category—from the “dark matter” column to the “ordinary matter” column. “Dark matter” is by definition mysterious.


Ryan Wyatt
Rose Center for Earth & Space
New York, New York

Answer 3

Gravity's value decreases the farther away from the source of it you get. Vera Rubin, in the 1970's, discovered that when she measured the velocity of stars close to the center of galaxies, and stars at edge, she noticed that their velocity was roughly the same. Naturally, the stars on the edge should be travelling slower than the stars close to the center because the center is the source of gravity. The only force that was making these outer-edge stars go so fast was gravity. But the amount of matter didn't correspond to the amount of acceleration of the stars.

To account for this question, a new type of matter was theorized, one thought to be made up of things other than atoms. Dark matter is just a missing variable in the problem of unaccounted-for gravity.

Answer 4

dark matter is a term used to describe the difference between the mass of the universe and the density of the universe. all the matter in the universe divided by the volume of the expanding universe should give a certain density value, but the readings show there is more matter out there than we can measure. this is denoted as "dark matter". no one knows for sure what it's like.

Answer 5

Nobody knows. It's just a term used to describe the supposed discrepancy between the calculated mass of observed matter in the universe and the mass necessary to make the physics math work

Answer 6

In astrophysics, dark matter is matter that does not emit or reflect enough electromagnetic radiation (such as light, X-rays and so on) to be detected directly, but whose presence may be inferred from its gravitational effects on visible matter. Among the observed phenomena consistent with the existence of dark matter are the rotational speeds of galaxies and orbital velocities of galaxies in clusters, gravitational lensing of background objects by galaxy clusters such as the Bullet cluster, and the temperature distribution of hot gas in galaxies and clusters of galaxies. Dark matter also plays a central role in structure formation and Big Bang nucleosynthesis, and has measurable effects on the anisotropy of the cosmic microwave background. All these lines of evidence suggest that galaxies, clusters of galaxies, and the universe as a whole contain far more matter than is directly observable, indicating that the remainder is dark.

The composition of dark matter is unknown, but may include new elementary particles such as WIMPs and axions, ordinary and heavy neutrinos, dwarf stars and planets collectively called MACHOs, and clouds of nonluminous gas. Current evidence favors models in which the primary component of dark matter is new elementary particles, collectively called nonbaryonic dark matter.

The dark matter component has vastly more mass than the "visible" component of the universe. [1] At present, the density of ordinary baryons and radiation in the universe is estimated to be equivalent to about one hydrogen atom per cubic meter of space. Only about 4% of the total energy density in the universe (as inferred from gravitational effects) can be seen directly. About 22% is thought to be composed of dark matter. The remaining 74% is thought to consist of dark energy, an even stranger component, distributed diffusely in space. [2] Some hard-to-detect baryonic matter (see baryonic dark matter) makes a contribution to dark matter, but constitutes only a small portion. [3] [4] Determining the nature of this missing mass is one of the most important problems in modern cosmology and particle physics. It has been noted that dark matter and dark energy serve mainly as expressions of our ignorance, much as the marking of early maps with terra incognita. [2]

More http://en.wikipedia.org/wiki/Dark_matter

Answer 7

fish one out of the bowl and find out,remember not to push the handle

Answer 8

Check out this link

http://www.math.ucr.edu/home/baez/physics/Relativity/GR/dark_matter.html