Dark Matter & Dark Energy

It's still a big mystery, but the prevailing thought on dark matter is that it exists.

There has been evidence of dark matter's gravitational effect on neighboring baryonic matter, but what dark matter really is has not been determined.

It is/was thought that dark matter may be hypothetical WIMPs (weakly interacting massive particles), but Fermi Lab's CDMS has yet to detect these particles leading some to suggest other mechanisms such a SIMPs (strongly interacting massive particles) - again, just hypothesis.

Dark energy is simply the engine that drives the expansion of space (the universe). It's not something that we can actually observe or measure, per se. We can see the effect, but we can't measure the cause any more than you can measure time. We measure the passage of time, but not time itself. Dark energy is just something that we can hang our hat on - sort of a process - that describes what we observe.

Both are good cosmological mysteries right now, which is kind of exciting. As Dylan wrote, "And you know something is happening, but you don't know what is. Do you, Mr. Jones?"

it has to be there or an awful lot of existing fact is bogus. its called "dark" because it can't be seen (yet) if its proven false many equations that are currently accepted will no longer balance out.

May be galaxies propelled themselves

By "seen" do you mean that as visual, or do you mean "detectable, or measurable"…Just curious as to how one would "measure" the phenomena. Thanks...

Would there be any difference with black hole, dark matter and dark energy, i think the three falls into one category- the reversals.

Three distinctly different things or phenomena.

They do have the universe in common.

May be dark energy is the spent up energy of the universe- the heat death. a form of energy which attained the end point state and irreversibility.

Or could be a reversal.

in my point of view, as we are suspended in a perfect medium - space which convey and supports perpetuity, there is only one universe but it's energy cycle is like that of a wave. Ours now "existence" is dying the other-dark energy is gaining or forming. A negative and a positive energy always equates to zero.

May be dark matter has reverse atom configuration (Nucleus is composed of electron, its orbitals are protons) May be who knows, no one reflects on that possibility, yet.

Who knows the end state of a black hole is dark matter.

Could it be that dark matter is the gravitational attraction of ordinary matter in a parallel universe?

http://www.physics.ucdavis.edu/~kaloper/siegfr.txt

That is a possibility. If it is the dominant cause of why large bodies in space do not fly apart then that implies that the location of mass across the parallel universe(s) must correlate or communicate in some a fashion. This implies that the other universes should be detectable from each other. How to detect them is still anybodies guess.

How to detect them is still anybodies guess.

Ironically, maybe dark matter means we have detected them, but I guess that is circular argument. We need other corroborating evidence.

I'm glad you use the word 'if', so many physicists seem convinced the case is closed on what holds the galaxies, etc together. If these phenomena were within easy reach of Earth they could be forgiven for assuming gravity had some influence. We are obviously obsessed with gravity as that is nearly all we sense in our puny little lives.

However in deep space things are completely different. Everything we see in deep space has an electromagnetic signature, whether light, UV, X-ray, radio or IR. These are all the products of plasma discharges and require zero gravitational influence. Some plasma discharges are initiated by heat or explosive energy, the majority have electrical origins. Examples of domestic long-term discharges are flourescent lamps. These require electric current to produce their UV output.

Birkeland was the first to measure the solar electric currents, which are evidenced by the amazing aurora displays. His work was vindicated by space probes 60 years after he was shouted down by establishment astronomers. Birkeland currents typically travel as twisted filamentary pairs and transmit power over vast distances in space. They are detectable by their magnetic fields. It is thought that galaxies and stars receive their power in this way. So it makes sense that as electrical systems they don't need any 'dark matter' to glue them together.

Dark energy seems to have originated from the mistaken belief by astronomers that 'red-shift' is ONLY a measure of distance/ speed. In actual fact there is plenty of evidence that redshift can be a measure of energy levels within galactic structures, particularly when excess energy/ material is split off to form quasars. These dim, high redshift bodies are the forerunners of daughter galaxies which are often found in ordered clumps.

The plasma universe theory has been pretty well debunked. There are still those that hang onto that theory, but it does not command serious attention by physicists.

I know, people will name names, but the overall consensus is that the theory is not valid. There was a whole discussion on it here some time ago.

Science by consensus has become the norm. It is no longer true science. Join the faith and you get a job brother.

Plasma Universe is superseded by the Electric Universe which is successfully making predictions and undergoing real experiments! The comet 67P debacle was predicted. Sad that the dusty snowball theory was not shelved 10 years ago and we might have had a better Philae landing.

Dark matter and energy should be debunked!

Again, my understanding after looking into it was that it had so many holes where significant predictions have not been found to be true.

To a degree it is a rebranding of the plasma universe.

However, the deal breaker for me is that there are no scholarly peer-reviewed papers on the electric universe that have been accepted.

Critics simply charge this is due to conspiracies, at which point the whole subject falls squarely into Langmuir's classic definition of Pathological Science.

I won't argue your right to believe in the electric universe and I just hope you can accept my rejection of it with equal respect.

Sounds like Narnia to me AH

Reality is likely to be much stranger than we can imagine or explain....

is this a true image solar or artist presentation?

You can see this image in two ways.

Big spaces filled with dark energy and causing spindly strings of matter?

Or big areas of empty space through which filamentary Birkeland currents form a structure of invisible power lines. Along these strings are the glowing lights of stars and galaxies who depend on electricity to stay alight.

I still have a fondness for MOdified Newtonian Dynamics (MOND) answering the dark matter problem. A simple explanation of this concept is to consider the idea that Newton's law of universal gravitational [F=G(m1*m2*r^-2)] should not asymptotically approach zero as r approaches ∞. This difference from zero may not be significant until distances between masses become many light years apart.