Dark Matter Photographed?

Question

Any Ideas On Its Density, Distrbution In The Universe Etc

Answer 1

Well you can't photogragh it that's for sure.

Answer 2

Dark matter has *never* been photographed. At this time the only way it can be detected at all is by precise motion measurements of galaxies and galactic clusters, gravitational lensing caused by dark matter, and temperature variations within galactic clusters.

It's estimated that dark matter makes up at least 23% of the content of the universe. Dark energy (..not the same thing..) accounts for about 73%, and plain old vanilla matter the remainder.

Answer 3

Results from the WMAP satellite indicate that the overall dark matter density in the universe is about 6 to 8 times that of regular atoms. However, in galaxies and clusters of galaxies, it's more like 10 times. The dark matter is distributed in clumps that attract regular matter to form galaxy clusters.

Answer 4

Dark matter can't be photographed directly, but its effects on normal matter has been documented in photographs.

I highly recommend checking out the sourced link for details. It goes into some detail on dark matter, explaining it far better than I could.

Answer 5

That's very interesting, I would have thought that Dark Matter could not be detected by emitting light.

Answer 6

I have had some dark matter photographed. It's pretty dark

Answer 7

all neutrino dust

Answer 8

this is the chinese web site,you can translate it yourself
http://www.sjkc.com.my/edu/Article_Show.asp?ArticleID=6613

Answer 9

everywhere!