Missing dark matter located: Intergalactic space is filled with dark matter

[IronWing]

"Hey man, you look stressed, what's the matter?"

"Quit picking on me!"

 

[LiuKangBakinPie]

Nothing is faster than the speed of light. To prove this to yourself, try opening the refrigerator door before the light comes on

 

[BoomerD]

Nothing is faster than the speed of light. To prove this to yourself, try opening the refrigerator door before the light comes on

waidafuckinminute...are you trying to imply that the light goes OUT when you close the door? 🙄

 

[LiuKangBakinPie]

waidafuckinminute...are you trying to imply that the light goes OUT when you close the door? 🙄

no i said try opening it before the light comes on. Btw there is a little white button just under the light. Press it in. Hope that fucks one theory or fantasy you might have had over fridges and lights that do not turn off

 

[silverpig]

Our vantage point is nowhere near sufficient to positively determine the bending effect on something so vast and distant. No one knows how light should bend from one galaxy to the next, let alone while we're observing it smack dab in the middle of our own galaxy / solar system.

It smells of something built on false pretenses.

I think it probably would be transparent. More transparent than the cleanest, thinnest glass sheet you can imagine. You might not even be able to hold it in your hand, it could pass right through, but it would still be 'heavy.'

basic idea, it doesn't interact with light or ordinary matter much, but it does have significant gravity. So it can affect light by bending it (the lensing mentioned above) though gravity-space-time stuff.

Where's silverpig? 😛

The current model for dark matter is that it is exactly like normal matter, but it doesn't interact via electromagnetism at all (or at least very weakly). This means it doesn't emit or absorb light, and won't interact with normal matter in any way other than via gravity. It is invisible, and passes right through everything, even itself.

Big nebulae of normal matter (gas and dust) slowly contract via gravity, then a lump forms at the middle as stuff hits other stuff and clumps. This clump gets denser, which pulls more stuff in, which makes it denser and denser until a star forms.

Big nebulae of dark matter would slowly contract via gravity, but instead of forming a lump, the dark matter would pass right through the center and out the other side. There would be this halo of mass that would follow the normal matter clump around, but would always pass though it.

If you define dark matter like this, then it very nicely and neatly explains a whole whack of observed phenomena, and it's not too crazy of an explanation: it's matter that just doesn't interact via electromagnetism.

What's more, neutrinos already have this property. They don't really interact with normal matter much (only via the weak force), and pass right through everything. Neutrinos don't fully explain dark matter though, but it makes dark matter less implausible: it's matter that just doesn't interact via electromagnetism, just like the neutrino, only more massive.

The problem with detecting dark matter is this: how the eff do you detect something that doesn't interact with anything other than via gravity, which is so weak you can only measure it on cosmological scales? There are a couple of experiments out there which are trying to detect dark matter in much the same way as one detects neutrinos. It's still pretty early on though.

 

[Gibsons]

---snip--- It's still pretty early on though.

Could dark matter form a black hole?

 

[RaistlinZ]

Universe is comprised of dark matter.


So what is dark matter comprised of?

 

[Brigandier]

That explains why space isn't absolute zero...

 

[child of wonder]

snip

EXTREMELY interesting! I hadn't heard that before. Thanks for sharing!!

 

[Bateluer]

Excellent, excellent . . . this was just the missing information I needed to complete my FTL drive specs.

 

[silverpig]

Could dark matter form a black hole?

Unlikely. In order for it to form a black hole, you need it to get stuck together. If it passes through everything, it wouldn't stick together and get more dense.

If however, there was some way to dampen energy (ie make it so it slowed down near the centre of a gravitational well and didn't just fly on through), then it could be possible.

 

[destrekor]

The current model for dark matter is that it is exactly like normal matter, but it doesn't interact via electromagnetism at all (or at least very weakly). This means it doesn't emit or absorb light, and won't interact with normal matter in any way other than via gravity. It is invisible, and passes right through everything, even itself.

Big nebulae of normal matter (gas and dust) slowly contract via gravity, then a lump forms at the middle as stuff hits other stuff and clumps. This clump gets denser, which pulls more stuff in, which makes it denser and denser until a star forms.

Big nebulae of dark matter would slowly contract via gravity, but instead of forming a lump, the dark matter would pass right through the center and out the other side. There would be this halo of mass that would follow the normal matter clump around, but would always pass though it.

Wouldn't it be more accurate to say that the dark matter coalescing into large clumps, at the point in time the universe was rapidly expanding (and proto-matter/matter in general was still coming into its own, drifting and dreaming of gaining mass alongside its brethren in the first stars, iirc), is what whipped matter into action, using it's already well-established gravity wells to pull normal matter together to start this whole process rolling?

Based on analyses and models, that seems to be about the only thing we can even imagine at this point (with and without more concrete dark matter data). It's actually quite interesting - what I currently understand about dark matter, wasn't changed one bit by this recent knowledge. That's one point science in my book - a few years ago, the accepted and common theoretical knowledge predicted - pretty much exactly - what was only recently discovered with a higher probability of factual information.

 

[TastesLikeChicken]

Went House Hunting...and Poop happened...

I hate pooping in public restrooms

I ate taco bell and.....

Breaking news: Missing Dark Matter Found on Internet Forum!

 

[silverpig]

Wouldn't it be more accurate to say that the dark matter coalescing into large clumps, at the point in time the universe was rapidly expanding (and proto-matter/matter in general was still coming into its own, drifting and dreaming of gaining mass alongside its brethren in the first stars, iirc), is what whipped matter into action, using it's already well-established gravity wells to pull normal matter together to start this whole process rolling?

Based on analyses and models, that seems to be about the only thing we can even imagine at this point (with and without more concrete dark matter data). It's actually quite interesting - what I currently understand about dark matter, wasn't changed one bit by this recent knowledge. That's one point science in my book - a few years ago, the accepted and common theoretical knowledge predicted - pretty much exactly - what was only recently discovered with a higher probability of factual information.

Hard to say. The energy density of the early universe was radiation dominated, and an inflation of quantum fluctuations in density is what gave us this large scale structure.

 

[LiuKangBakinPie]

Whenever science makes a discovery, the devil grabs it while the angels are debating the best way to use it.

 

[JTsyo]

It constitutes about 22 percent of the present-day universe while ordinary matter constitutes only 4.5 percent.

Guessing that for volume and not mass. The other 73.5% is just empty, right?

Maybe dark matter can be a fuel source for trips outside our solar system or is it confined to intergalactic regions?

 

[silverpig]

Guessing that for volume and not mass. The other 73.5% is just empty, right?

Maybe dark matter can be a fuel source for trips outside our solar system or is it confined to intergalactic regions?

It's energy (which is equivalent to mass). Most of the other 73.5% is dark energy. There's a tiny bit of radiation in there as well.

 

[Dr. Zaus]

Guessing that for volume and not mass. The other 73.5% is just empty, right?

Maybe dark matter can be a fuel source for trips outside our solar system or is it confined to intergalactic regions?

We don't know and we don't have any disprovable ideas regarding this either.

Silver pig here is either talking out of his ass or out of his professor's un-testable hunch.

It's energy (which is equivalent to mass). Most of the other 73.5% is dark energy. There's a tiny bit of radiation in there as well.

 

[SagaLore]

The current model for dark matter is that it is exactly like normal matter, .... and passes right through everything, even itself..... the dark matter would pass right through the center and out the other side.

This is the first time I've heard of dark matter described in this way. Is this your own personal idea on this, or did you read this somewhere?

How can it be exactly like matter without mass boundaries?

How can it have gravity without mass boundaries?

 

[LiuKangBakinPie]

Dark energy is spread throughout the universe and appears to make up about 74 percent of its content. Possesses the important property of negative pressure, which means that the more space it occupies, the less energy it has.

 

[LiuKangBakinPie]

This is the first time I've heard of dark matter described in this way. Is this your own personal idea on this, or did you read this somewhere?

How can it be exactly like matter without mass boundaries?

How can it have gravity without mass boundaries?

Dark Matter, in astronomy, designation for matter that does not give off or reflect detectable electromagnetic radiation, the radiant energy that includes visible light, radio waves, infrared radiation, X rays, and gamma rays etc etc

 

[silverpig]

We don't know and we don't have any disprovable ideas regarding this either.

Silver pig here is either talking out of his ass or out of his professor's un-testable hunch.

http://map.gsfc.nasa.gov/

The CMB became the "premier baryometer" of the universe with WMAP's precision determination that ordinary atoms (also called baryons) make up only 4.6% of the universe (to within 0.1%)

WMAP's complete census of the universe finds that dark matter (not made up of atoms) make up 23.3% (to within 1.3%)

WMAP's accuracy and precision determined that dark energy makes up 72.1% of the universe (to within 1.5%), causing the expansion rate of the universe to speed up. - "Lingering doubts about the existence of dark energy and the composition of the universe dissolved when the WMAP satellite took the most detailed picture ever of the cosmic microwave background (CMB)." - Science Magazine 2003, "Breakthrough of the Year" article

This is the first time I've heard of dark matter described in this way. Is this your own personal idea on this, or did you read this somewhere?

How can it be exactly like matter without mass boundaries?

How can it have gravity without mass boundaries?

This is all well published material. I did a degree in astrophysics and two of my profs were leading cosmologists. One was on the WMAP team, and the other was on the theory side and wrote the cosmology section of the particle data book.

It has mass and thus gravitates. It just doesn't interact electromagnetically. Gravity pulls you towards the centre of the earth, electromagnetism keeps you from falling through the floor.

 

[Dr. Zaus]

http://map.gsfc.nasa.gov/

Oddly enough, there's been more research on the subject since 2003.

Tsagas, Christos G. (2011). "Peculiar motions, accelerated expansion, and the cosmological axis". Physical Review D 84: 063503.

Hogan, Jenny (2007). "Unseen Universe: Welcome to the dark side". Nature 448 (7151): 240–245.

Mustapha Ishak; James Richardson; David Garred; Delilah Whittington; Anthony Nwankwo; Roberto Sussman (2007). "Dark Energy or Apparent Acceleration Due to a Relativistic Cosmological Model More Complex than FLRW?". Physics Review D 78 (12).

Teppo Mattsson (2007). "Dark energy as a mirage". General Relativity and Gravitation 42 (3): 567–599.

Clifton, Timothy; Pedro Ferreira (April 2009). "Does Dark Energy Really Exist?". Scientific American 300 (4): 48–55.

 

[coreychambers]

There is no dark matter particle, and the world is not flat. Science is wonderful. It gets even more powerful when we remember that the majority of mainstream scientists are near-sighted, therefore sometimes flat out wrong. Just like the majority of mainstream scientists once believed that the world was flat, based on simple observation, the majority are currently wrong about a few things. Mainstream scientists still believe that we are in a universe, based on simple observation. If you break out your home telescope and look at the storm cloud clusters, they are all obviously spinning in the same direction. But your observation will be short-sighted. Storm cloud formations in the other hemisphere are actually spinning in the opposite direction. We just can't see them from our position. Scientist make this mistake routinely. They are understandably quick to make the strongest theoretical arguments based on what can be observed the most directly. Many scientists are just now beginning to realize that, like the flat earth theory, the universe theory is also incorrect. Quantum physics, new information and common sense based on mathematical models and far-sighted thinking make it pretty clear that we live in a multiverse. The widely accepted isotropic theory of the universe is also incorrect simply because the other universes and the other hemisphere of universe is not readily visible.

The reason that we cannot see dark energy and dark matter but can measure its effect is because the effects are likely instead coming from mulitversal forces that are too far away for us to readily observe. What today's bulk of scientists believe is coming from dark matter and dark energy can be better explained as inertia and Coriolis effect when we look at the bigger picture of the multiverse.

https://www.google.com/url?sa=t&rct...r93TxGYQHhxF9StwA&sig2=-ZRR7MP9mCDVlV_iVp9FYg

https://arxiv.org/pdf/1101.0161.pdf

http://www.sciencepublishinggroup.com/news/sciencepgfrontiersinfo?articleid=93

http://discovermagazine.com/2013/julyaug/21-the-possible-parallel-universe-of-dark-matter

 

[Tweak155]

Way to refute a 4yr old thread. Take THAT, OP.