What is "Dark Matter"

The definition of Dark Matter is a form of MASS that emits little or NO LIGHT but whose existence we infer from its gravitational influence.
So Dark Matter is simply "stuff" that we cannot see out in space, but we know it has to be there because there is a lot of evidence that says it should. We don't know what it is. But, it represents around 90% of all the mass of the universe. We don't know much about it aside from that it is out there and there is a lot of it.

It is an invisible component of the universe. tests show that galaxy's black holes do not actually have enough gravity to hold all their stars together, and light from distant stars can sometimes appear warped. why? Dark Matter. It has extra gravity that holds galaxies together, and can warp light, yet it is invisible, and scientists still have not found a way to detect it because so far, we don't know what it reacts to.... but they know it must be there because of it's gravity. people think there is nothing in empty space, but they are wrong. matter is not the only thing around. the whole universe is made of different 'things'. Matter, dark matter, and dark energy, are the 3 that we have identified so far

It's stuff in space that we can't see. We are only aware of it because of its gravity. That's all I know about it.

Uniontera number 11-1, hope it helps. This is your so-called dark matter.

Existence is the time expressed by light itself. http://www.youtube.com/watch?v=AN1jTwHUC…

1. When same times met ... Arrow A (Cause of Laser / Origin of Death / Reason of Chemical reaction)
2. When different times met ... Arrow B (This is your so-called "Gravity" / Cause of Higgs boson / Origin of Life / Reason of Biological reaction)
3. The rose line is the beginning light. (result from Genesis 1:3)
4. The existence of different time. (result from relativity of light)