The only similarity we know of is that they all seem to interact with gravity. Aside from that, scientists do not know what dark matter is.
We don't really know very much about dark matter, so most of its properties (like how it feels) are not known.
Dark matter is matter that does not interact via the electromagnetic force. We don't really know what dark matter is, exactly; there are several possibilities. We know that it interacts via gravity, meaning it has mass. It may, or may not, or SOME of it may, interact via the weak force as well.
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.
I dont know correctly but it may be most of the galaxy I think so! In reality we don't 'know' but our best understanding is; Ordinary matter: ~4.5 %, dark matter: 23%, dark energy: 72%. Reputedly 80% of this 23% dark matter is cold dark matter and 20% is hot dark matter. It has been said that "dark matter.... makes up more than 80% of the matter of the universe." but that is a common misunderstanding; But we MAY say; up to 96% of the mass-energy in the universe is 'dark'. We don't know what dark matter is, but in fact it only means it does not have an easily detectable 'electromagnetic cross section' so it could be electrons/ions plasma, which has a refractive index of 1.
We know "dark matter is present because it affects the world in ways I do not know of.
States of matter are: - solid - liquid - gas - plasma - Bose-Einstein condensate - dark matter - fermionic condenste - strange matter etc.
Standard physics and chemistry are based on the energy and matter that we know. We do not know much about dark energy or dark matter, but only that it may exist.
did you know that..... the fourth state of matter is plasma and the fifth state is boxi einstein.
It is currently unknown as scientists do not even know what dark matter is.
The only similarity we know of is that they all seem to interact with gravity. Aside from that, scientists do not know what dark matter is.
Astronomers can infer the mass of a galaxy from the rate at which it rotates. The visible, glowing matter in galaxies (i.e., the stars) do not account for the amount of matter which we know must be there, hence we conclude that there is some additional matter which we do not see because it does not glow, or in other words is dark. Beyond that, we don't know very much about dark matter.
Einstein had dark brown eyes.
We don't really know very much about dark matter, so most of its properties (like how it feels) are not known.
Dark matter is matter that does not interact via the electromagnetic force. We don't really know what dark matter is, exactly; there are several possibilities. We know that it interacts via gravity, meaning it has mass. It may, or may not, or SOME of it may, interact via the weak force as well.
Einstein and de Sitter in 1932 proposed a simple solution of the field equations of general relativity for an expanding universe. They argued that there might be large amounts of matter which does not emit light and has not been detected. This matter, now called 'dark matter', has since been shown to exist by observing is gravitational effects.
If all thing things pass through a worm hole. We have dark matter all over. How can it not past through a singletary. If you take all that we know about time. We always had a missing pieces. Ok, no more bull I believe that Dark Matter is Time . Matter flows into the center of a black hole and we know that nothing can escape. But we have too know that Dark Matter has too also have to go through the black hole. What if we look at Black Matter as a part /or time it self. We can't say that we know what Dark Matter is. We can't say what Time is. What if they were both the same. We know that they can not be Separated. I believe one day that it's from a Black Hole that we will see the Time distortion between Dark Matter and a Gravity Well. Remember Dark Matter is Matter. We can't see it right now. Just like Time. But who's to say there not the same.