supposedly space is nothing, Anyone heard of the dark matter theory?

Answer 1

Antimatter

Answer 2

yes. I've seen a special on tv talkin about dark matter. They said the idea of Dark Matter has been in the press for about a decade and yet there is still little known about this phenomenon. The term ‘Dark Matter’ was first used by Fritz Zwicky (1898-1974) in 1933. There have been many theories proposed that could explain this strange phenomenon but in the past decade it has been beyond astrophysicists to accurately describe what dark matter is.
The fact that matter will emit radiation in one form or the other is used by astronomers to see if there is matter in any given system, although this can not be always relied on as planets like the Earth do not emit enough radiation for them to be observed at long distances[1]. This was not a major problem as the Sun accounts for 99% of the mass in our Solar System, the assumption was so made that most of the Universe’s mass would be luminous (the majority of the Universe’s mass being contained within stellar objects like the Sun).
The first observation that indicated that there was more mass in the Universe that could not be readily ‘seen’ was by Zwicky who in 1933 from observations of eight galaxies in the Coma Cluster found that the radial velocities of these galaxies were extraordinarily high (V = 1019 ± 360 kms-1). This meant that the light-to-mass ratio of the Coma Cluster would have indicated a mean density 400 times great than that derived from that of the luminous matter. In Zwicky’s case he had over-estimated what the light-to-mass ratio was due to the Hubble Constant being incorrect[2]. With use of the modern value for the radial velocity would be 400 ± 50 kms-1. From this evidence he came up with the theory that there was non-luminous dark matter accounting for the mass difference. The idea that there may be dark matter was further verified by Smith in 1936 who was taking observations of the Virgo Cluster, which also appears to have an unexpected high mass.
Im not only Nachos with Cheese. Im also a cheesy science lover and great copy and paste guy too.

Answer 3

Yup.

In fact:
http://www.cnn.com/2006/TECH/space/08/21/dark.matter/index.html

I'm surprised this isn't a bigger deal on more news stations actually, sounds amazing to me.

Now onto the boring science stuff:

So your assumptions have a few problems.
First, space, by many theories, isn't "nothing". There are theories that call for a zero point energy (vacuum energy) stating that space is an infinite negative well, filled with an infinite amount of positive energy, to make zero, but that sometimes the energy gets a bit of a bump, and the positive energy jumps out of the well. This creates a particle and antiparticle, has been seen to happen, and is a mechanism behind the theory of how black holes could evaporate.

Second, the entire purpose behind putting the word "dark" in front of dark matter (and dark energy) is that it is "dark" to all our scientific measuring abilities.

We can't see it, test it, measure it, or anything about it except notice its gravitational properties. And gravity, being the weakest force in nature, is also another reason even being able to see its properties still leaves it so "dark".

But basically, yes it's an awkward theory, but so is most of the cutting edge stuff in physics. Just be comforted to know that scientists at NASA are still working their butts off to make the universe make sense.

Answer 4

.US astronomers say they have found the first direct evidence for the mysterious stuff called dark matter.

Dark matter - which does not emit or reflect enough light to be "seen" - is thought to make up 25% of the Universe.

By contrast, the ordinary matter we can see is believed to make up no more than about 5% of our Universe.

Answer 5

read article today with picture of dark matter @ msnbc science. sounded like they knew what they were talking about.
think i got some dark matter in my skull too.

Answer 6

Instead of copy pasting Mr Nachos wit c... write the site you visited..

Answer 7

there IS too mAny goOd answer HERE alreaDY, I WONT EVEN TRY FOR 10 PTS