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I have this extra credit question to do in science and it is "what is dark matter and how far away is it from us (humans)?" I know what dark matter is, I just need the approximate distance.

2007-10-24 14:42:48 · 7 answers · asked by tracknsk8ing_ohyeah 1 in Science & Mathematics Astronomy & Space

7 answers

Zero. Dark matter is everywhere. We can't detect it directly, because it goes right through everything. Note, however, the density of dark matter is only about the equivalent of about 6 atoms per cubic meter. (Or maybe it's 60, or 6000. The 6 atoms number is the average for the whole universe, I don't know the number for around the solar system.)

2007-10-24 14:51:38 · answer #1 · answered by morningfoxnorth 6 · 2 1

If dark matter Exist as a Type of Aether that was once postulated by Democrestus as the smallest indivisible substance of the Universe making up the volume of the Universe,Then dark matter is what hold the Human body into shape as well as any other celestial bodies in the Universe.

Thus Dark matter,energy and dark force would be the Unification of all forces and Energies common thu out the voulume of the Universe. So it pervades all locations of the Cosmos.

2007-10-24 15:09:24 · answer #2 · answered by goring 6 · 0 1

Folks refer to "dark" matter in reference to the gravitational question which arises in spiral galaxies. Normally, stars close to the center of the galaxy should revolve around the galactic center faster than more distant stars and the spiral arms should disappear very quickly.

Right now, no one knows for certain what the "dark matter" is, but one possibility is that gravity from another dimension may be responsible. It is now believed by some that gravity can act in more than 3 space dimensions. This belief is fueled by the fact that gravity is so very much weaker than the other forces in nature. The other forces in nature, however, only act in 3 space dimensions. Acting over more dimensions would cause gravity to appear "weak" in comparison.

Since our physical stars (an all matter in our "space") can only move in 3 dimensions, it may be possible for some gravitational force from outside our "space" to be causing this anomaly. I can only try and draw a comparison. Imagine a magnet held beneath a board and a steel ball above. If you move the ball in the proper direction, it will "magically" circle an invisible "center" - caused by the magnet that it cannot move to, but is attracted by. We understand the magnet, but it seems strange indeed if it was gravity acting into our space-time continuum from something outside our 3 dimensional space (4 dimensional if you count time as a dimension). Some theories predict a total of 10 or 11 dimensions (of which we only experience 3 space and 1 time dimension).

This is one possibility. As to how far, the question is almost meaningless as we cannot access any other dimensions. I would suspect there is an answer (such as how far away the magnet is from the steel ball I gave as a crude example), but there is no way for us to measure it.



Best regards,
Jim

2007-10-24 16:27:00 · answer #3 · answered by Jim H 3 · 1 1

It is probably inside you/going trough you all the time. The most likely candidate for dark matter is a very weakly interacting particle very much like neutrinos but with much more mass. We will probably know within a decade or two.

2007-10-24 17:00:05 · answer #4 · answered by Anonymous · 1 0

Personally, I think dark matter is going to go the route of crystal spheres, luminiferous ether, worm-holes, and parallel Universes.

2007-10-24 14:53:11 · answer #5 · answered by Brant 7 · 0 0

if you know what dark matter is then you should be awarded a nobel peace prize.

no one is sure what dark matter is.

it could be right in front of your nose as far as we know.

I'd say a good answer for the text books maybe, --- outside the atmosphere. 250 miles away

2007-10-24 14:50:51 · answer #6 · answered by Mercury 2010 7 · 0 1

We don't know, as scientists have not detected it. It is "theoretical" which means it could be inside your anus or bush's ***.

2007-10-24 14:47:07 · answer #7 · answered by David U 2 · 1 3

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