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Serious Blow to Dark Matter Theories?
Stoppitt
Kruger Ally
User ID: 78119
04-18-2012 06:53 PM

Posts: 4,627



Post: #1
Serious Blow to Dark Matter Theories?
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Quote:
The most accurate study so far of the motions of stars in the Milky Way has found no evidence for dark matter in a large volume around the Sun. According to widely accepted theories, the solar neighbourhood was expected to be filled with dark matter, a mysterious invisible substance that can only be detected indirectly by the gravitational force it exerts. But a new study by a team of astronomers in Chile has found that these theories just do not fit the observational facts. This may mean that attempts to directly detect dark matter particles on Earth are unlikely to be successful.

Unquote.

http://www.sciencedaily.com/releases/201...111923.htm
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The Ghost of David Carradine
lop guest
User ID: 89685
04-18-2012 08:43 PM

 



Post: #2
RE: Serious Blow to Dark Matter Theories?
STOPPITT  Wrote: (04-18-2012 06:53 PM)
Quote:
The most accurate study so far of the motions of stars in the Milky Way has found no evidence for dark matter in a large volume around the Sun. According to widely accepted theories, the solar neighbourhood was expected to be filled with dark matter, a mysterious invisible substance that can only be detected indirectly by the gravitational force it exerts. But a new study by a team of astronomers in Chile has found that these theories just do not fit the observational facts. This may mean that attempts to directly detect dark matter particles on Earth are unlikely to be successful.

Unquote.

http://www.sciencedaily.com/releases/201...111923.htm

Very interesting.

5*


I wonder if both dark matter and dark energy will turn out to be fallacious in the end.
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LoP Guest
lop guest
User ID: 78397
04-18-2012 08:53 PM

 



Post: #3
RE: Serious Blow to Dark Matter Theories?
Dark-matter fermion from left-right symmetry

Ernest Ma

Accepted Wednesday Apr 04, 2012

"In an unconventional realization of left-right symmetry, the particle corresponding to the left-handed neutrino nL (with SU(2)L interactions) in the right-handed sector, call it nR (with SU(2)R interactions), is not its Dirac mass partner, but a different particle which may be a dark-matter candidate. In parallel to leptogenesis in the SU(2)L sector, asymmetric production of nR may occur in the SU(2)R sector. This mechanism is especially suited for nR mass of order 1 to 10 keV, i.e. warm dark matter, which is a possible new paradigm for explaining the structure of the Universe at all scales."


http://prd.aps.org/accepted/D/a7073Y96D7...&width=500
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LoP Guest
lop guest
User ID: 78435
04-18-2012 09:07 PM

 



Post: #4
abduct RE: Serious Blow to Dark Matter Theories?
It can't be seen or measured and thus can't be proven, and scientists have the stomach to call UFO theories pseudo science. Maybe if they opened their minds, the aliens could tell them all they need to know about their space energies.
Hiding
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FreeFlow staff
Follow da docta !!!
User ID: 5
04-18-2012 09:25 PM

Posts: 28,931



Post: #5
RE: Serious Blow to Dark Matter Theories?
Bump
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absurdious
Regressing to the Mean
User ID: 27152
04-18-2012 09:52 PM

Posts: 19,154



Post: #6
RE: Serious Blow to Dark Matter Theories?
The current state of Physics is a jumbled mess, turned in on itself by years and years of dogmatic reductionist indoctrination...
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LoP Guest
lop guest
User ID: 40036
04-18-2012 10:05 PM

 



Post: #7
RE: Serious Blow to Dark Matter Theories?
David  Wrote: (04-18-2012 08:43 PM)
STOPPITT  Wrote: (04-18-2012 06:53 PM)
Quote:
The most accurate study so far of the motions of stars in the Milky Way has found no evidence for dark matter in a large volume around the Sun. According to widely accepted theories, the solar neighbourhood was expected to be filled with dark matter, a mysterious invisible substance that can only be detected indirectly by the gravitational force it exerts. But a new study by a team of astronomers in Chile has found that these theories just do not fit the observational facts. This may mean that attempts to directly detect dark matter particles on Earth are unlikely to be successful.

Unquote.

http://www.sciencedaily.com/releases/201...111923.htm

Very interesting.

5*


I wonder if both dark matter and dark energy will turn out to be fallacious in the end.

Fallacious? To what end?

The article isn't a blow to dark matter theory, it specifically says no dark matter "in a large volume" near our Sun. Dark matter is supposed to exist in the places between the galaxies primarily anyway.

BTW, the observations that these astronomers used is EXACTLY the same type of observations (but of galaxies, not just of our Milky Way) that led to the idea of dark matter in the first place.
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LoP Guest
lop guest
User ID: 91055
04-18-2012 10:25 PM

 



Post: #8
RE: Serious Blow to Dark Matter Theories?
David  Wrote: (04-18-2012 08:43 PM)
Very interesting.

5*


I wonder if both dark matter and dark energy will turn out to be fallacious in the end.

Of course it is. Dark matter was "discovered" only after experiments proved there wasn't enough mass in our galaxy:

Quote:Scientists reached a consensus in the 1970s that there was more to the universe than meets the eye. In computer simulations of our galaxy, the Milky Way, theorists found that the center would not hold—based on what we can see of it, our galaxy doesn’t have enough mass to keep everything in place. As it rotates, it should disintegrate, shedding stars and gas in every direction. Either a spiral galaxy such as the Milky Way violates the laws of gravity, or the light emanating from it—from the vast glowing clouds of gas and the myriad stars—is an inaccurate indication of the galaxy’s mass.

Of course they don't acknowledge the "our theory's wrong" option. They just invent a phantom, invisible, unmeasurable "thing" and put it in exactly the right spots so that their original theory doesn't get totally blown to shit.
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LoP Guest
lop guest
User ID: 91055
04-18-2012 10:29 PM

 



Post: #9
RE: Serious Blow to Dark Matter Theories?
LoP Guest  Wrote: (04-18-2012 10:05 PM)
David  Wrote: (04-18-2012 08:43 PM)
STOPPITT  Wrote: (04-18-2012 06:53 PM)
Quote:
The most accurate study so far of the motions of stars in the Milky Way has found no evidence for dark matter in a large volume around the Sun. According to widely accepted theories, the solar neighbourhood was expected to be filled with dark matter, a mysterious invisible substance that can only be detected indirectly by the gravitational force it exerts. But a new study by a team of astronomers in Chile has found that these theories just do not fit the observational facts. This may mean that attempts to directly detect dark matter particles on Earth are unlikely to be successful.

Unquote.

http://www.sciencedaily.com/releases/201...111923.htm

Very interesting.

5*


I wonder if both dark matter and dark energy will turn out to be fallacious in the end.



BTW, the observations that these astronomers used is EXACTLY the same type of observations (but of galaxies, not just of our Milky Way) that led to the idea of dark matter in the first place.

Exactly, DM was invented not discovered, it's patchwork.
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The Ghost of David Carradine
lop guest
User ID: 89685
04-18-2012 10:30 PM

 



Post: #10
RE: Serious Blow to Dark Matter Theories?
LoP Guest  Wrote: (04-18-2012 10:05 PM)
David  Wrote: (04-18-2012 08:43 PM)
STOPPITT  Wrote: (04-18-2012 06:53 PM)
Quote:
The most accurate study so far of the motions of stars in the Milky Way has found no evidence for dark matter in a large volume around the Sun. According to widely accepted theories, the solar neighbourhood was expected to be filled with dark matter, a mysterious invisible substance that can only be detected indirectly by the gravitational force it exerts. But a new study by a team of astronomers in Chile has found that these theories just do not fit the observational facts. This may mean that attempts to directly detect dark matter particles on Earth are unlikely to be successful.

Unquote.

http://www.sciencedaily.com/releases/201...111923.htm

Very interesting.

5*


I wonder if both dark matter and dark energy will turn out to be fallacious in the end.

Fallacious? To what end?

The article isn't a blow to dark matter theory, it specifically says no dark matter "in a large volume" near our Sun. Dark matter is supposed to exist in the places between the galaxies primarily anyway.

BTW, the observations that these astronomers used is EXACTLY the same type of observations (but of galaxies, not just of our Milky Way) that led to the idea of dark matter in the first place.

To what end?

I don't even understand the question.

All I said was I wonder if it will turn out to be fallacious.


As for your comment that dark matter is said only to exist in the region around or between galaxies and not in them, what is the explanation for that?

Why is that?


Why if it exists adn interacts at least gravitationally (if not in other ways) should galaxies not be permeated with it?

One would assume that some would fall into or mix with the normal matter of the galaxy, no?

If you don't know the answer (and you strike even me as as a know-it-all, and that is impressive) perhaps you could be so kind as to point me in the right direction.
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Mike
lop guest
User ID: 88229
04-18-2012 10:33 PM

 



Post: #11
RE: Serious Blow to Dark Matter Theories?
At the current rate we're going, it wouldn't surprise me if it's another thousand years (if we're still around) before we have a truthful solid understanding of the Universe.
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Mike
lop guest
User ID: 88229
04-18-2012 10:35 PM

 



Post: #12
RE: Serious Blow to Dark Matter Theories?
Agonist  Wrote: (04-18-2012 10:33 PM)
At the current rate we're going, it wouldn't surprise me if it's another thousand years (if we're still around) before we have a truthful solid understanding of the Universe.

And while I'm thinking about that... what if the Universe is self aware - and should we begin to learn too much about it and try to use that knowledge in nefarious ways (like we seem to love to do) then it decides "enough of you" and starts over.

doomed
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Gibbie
^D ^D ^D whoa
User ID: 49076
04-18-2012 10:55 PM

Posts: 7,069



Post: #13
RE: Serious Blow to Dark Matter Theories?
Dark Matter: can't be seen, felt, tasted, heard, or smelled but is responsible for the motion of the Universe. How is this different than God?

Thanks science chuckle

Challenge your programming.
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ASA
Registered User
User ID: 88446
04-18-2012 10:58 PM

Posts: 8,993



Post: #14
RE: Serious Blow to Dark Matter Theories?
Dark Matter and Dark Energy is scientific shorthand for " we have no idea. "

All rivers return to the sea.
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LoP Guest
lop guest
User ID: 40036
04-18-2012 11:06 PM

 



Post: #15
RE: Serious Blow to Dark Matter Theories?
David  Wrote: (04-18-2012 10:30 PM)
LoP Guest  Wrote: (04-18-2012 10:05 PM)
David  Wrote: (04-18-2012 08:43 PM)
Very interesting.

5*


I wonder if both dark matter and dark energy will turn out to be fallacious in the end.

Fallacious? To what end?

The article isn't a blow to dark matter theory, it specifically says no dark matter "in a large volume" near our Sun. Dark matter is supposed to exist in the places between the galaxies primarily anyway.

BTW, the observations that these astronomers used is EXACTLY the same type of observations (but of galaxies, not just of our Milky Way) that led to the idea of dark matter in the first place.

To what end?

I don't even understand the question.

All I said was I wonder if it will turn out to be fallacious.


As for your comment that dark matter is said only to exist in the region around or between galaxies and not in them, what is the explanation for that?

Why is that?


Why if it exists adn interacts at least gravitationally (if not in other ways) should galaxies not be permeated with it?

One would assume that some would fall into or mix with the normal matter of the galaxy, no?

If you don't know the answer (and you strike even me as as a know-it-all, and that is impressive) perhaps you could be so kind as to point me in the right direction.

fallacious means 'meant-to-deceive', not 'incorrect'. So I was asking: what purpose does dark matter theory solve as a lie?

The subject is well-published which is why I assumed I didn't need to back up a description of dark matter theory. It isn't my theory and no one said it was.

Thing about physics is you can't assume things about it, you have to learn the math, then perform the math yourself. That's literally the only way to correctly understand the related science. Dark matter is just an idea and has never been more than that. The scientists who came up with it, based on observations, will tell you so. They are trying to describe the things they experience and understand it. That they are wrong sometimes along the way doesn't really count against them if they adapt to new information immediately and joyfully instead of with fear and reservation.
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