Has Dark Matter Finally Been Found? Big News Coming Soon
Source: Space.com
BOSTON Big news in the search for dark matter may be coming in about two weeks, the leader of a space-based particle physics experiment said today (Feb. 17) here at the annual meeting of the American Association for the Advancement of Science.
That's when the first paper of results from the Alpha Magnetic Spectrometer, a particle collector mounted on the outside of the International Space Station, will be submitted to a scientific journal, said MIT physicist Samuel Ting, AMS principle investigator.
Though Ting was coy about just what, exactly, the experiment has found, he said the results bear on the mystery of dark matter, the invisible stuff thought to outnumber regular matter in the universe by a factor of about six to one.
"It will not be a minor paper," Ting said, hinting that the findings were important enough that the scientists rewrote the paper 30 times before they were satisfied with it. Still, he said, it represents a "small step" in figuring out what dark matter is, and perhaps not the final answer. [Photos: AMS Hunts Exotic Particles In Space]
Read more: http://www.space.com/19845-dark-matter-found-nasa-experiment.html
Wait Wut
(8,492 posts)Though I'm far from a science geek*, this fascinates me. I think it goes back to my childhood when my father tried to explain atoms and molecules and I asked, "But, what holds them all together?" I got nothing back but a blank stare.
*I use the term 'geek' in the most respectful and affectionate way.
NutmegYankee
(16,199 posts)If it offends somebody, they probably aren't one.
RC
(25,592 posts)Cirque du So-What
(25,939 posts)when 'geek' referred to a sideshow freak - perhaps the guy who bites the heads off live chickens.
JeffHead
(1,186 posts)valerief
(53,235 posts)hue
(4,949 posts)If You care to seek yet the answer look up gluons!
AtheistCrusader
(33,982 posts)We have detectors buried in mines around the planet too, to shield them from cosmic rays, hoping to pick up the temperature increase from an impact on a wafer of Germanium, that's been chilled close to absolute zero.
I'm surprised, but happy that possibly the ISS picked it up first!
One more piece of the puzzle, in place, I hope.
WCGreen
(45,558 posts)I get most of my science rom Nova and Frontline on PBS with a little from the Science Channel so I know a little about it so I am excited when breakthroughs occur.
RC
(25,592 posts)That is why the universe is expanding at an ever faster rate.
And why it is so hard to find in this gravity well.
Dark matter was detected through its gravitational attraction with visible matter.
hue
(4,949 posts)Spitfire of ATJ
(32,723 posts)A galaxy is composed of billions of stars but they are so far away from each other that their gravity should not be able to hold them together in a spiral. There must be some other force allowing that so scientists speculate that whatever that is must be invisible to our instruments and must have it's own gravity.
A long time ago there was talk of space as not being empty but filled with substance and even Lovecraft talked about the aether of space. Some of his creatures had wings that could fly though it but were useless in an atmosphere.
There are others like myself that consider the dimensions to be length, width, depth, time, and space. With space being an actual dimension that we already know is influenced by gravity. If you think of space as being what is moving instead of this phantom mass with theoretical gravity then the structure of galaxies is easily understood.
hue
(4,949 posts)yodermon
(6,143 posts)progressoid
(49,990 posts)bemildred
(90,061 posts)hue
(4,949 posts)FSU physicist shining a light on mysterious 'dark matter'
http://www.fsu.edu/news/2007/10/02/dark.matter/
bemildred
(90,061 posts)Things don't fit the theory, so you throw in a fudge factor to make the equations fit observation. That's how Ptolemiac Astronomy got so convoluted. But, if they ever figure it out, it's going to be big, and new, and different, like Relativity itself was at the time.
D Gary Grady
(133 posts)You're not alone. For a long time a lot of people suspected that such things as the rotational behavior of spiral galaxies could best be explained with a revised theory of gravity. But evidence has been piling up that dark matter really is a form of matter that interacts with other matter only gravitationally. In particular, gravitational lensing has permitted mapping the distribution of dark matter and shownit to be different from that of the visible parts of galaxies.
bemildred
(90,061 posts)I've read some of those stories about the dark matter halos and the mega-galactic structures. I suspect we do not yet have the proper language to talk about whatever it is. Like quantum effects before we had quantum theory. What does it mean for something to have mass but not interact with "ordinary matter", if not that you have some form of "extraordinary matter"?
Edit: the other thing about dark matter is there is so much of it.
Jackpine Radical
(45,274 posts)bemildred
(90,061 posts)Orrex
(63,213 posts)How will I know exactly where it will be made?
backtoblue
(11,343 posts)***burn after reading***
Ikonoklast
(23,973 posts)Just the act of listening to the announcement changes the location from whence it was made.
And people listening at *that* location will think it is coming from somewhere else.
I love it when people explain my jokes to me.
Fantastic Anarchist
(7,309 posts)Well, we can't be "certain," can we?
Duer 157099
(17,742 posts)Also, just FYI, every scientist everywhere always thinks their paper is going to be the most important thing anybody has ever published.
Just sayin'.
hue
(4,949 posts)powerful collisions in 2 years.
http://news.discovery.com/space/lhc-shutdown-cern-higgs-130214.htm
dorkulon
(5,116 posts)I'm certainly not an expert, but it always seemed a bit convenient, this invisible stuff that makes physicists' equations work out. It will be interesting to see what's revealed here.
Motown_Johnny
(22,308 posts)Honestly, I hope they found something significant but I am not holding my breath.
VWolf
(3,944 posts)Just sayin'
longship
(40,416 posts)According to the late, great Douglas Adams.
darkangel218
(13,985 posts)I suspect it is the exact opposite of what real matter is, bassically some sort of negative energy which devoures and voids real matter. It's what the black holes are made of.
Even the ancient Sumerians were talking about the Primordial chaos/void from which our universe was created.
D Gary Grady
(133 posts)The total energy of a gravitational field exactly cancels out the mass-energy that causes it, something implicit in Einstein's general theory of relativity but also, interestingly enough, in Newtonian gravitation (though that wasn't obvious). The total mass-energy of the universe, counting the energy of the gravitational field, ends up being close to zero and very possibly exactly zero.
Of course, that the ancient Sumerians knew spoke of primordial chaos shows that they had lawyers too.
darkangel218
(13,985 posts)Lawyers, I mean.
samsingh
(17,598 posts)mamayo
(25 posts)it's called Pat Robertson
Botany
(70,508 posts)*****
BTW if it outnumbers regular matter in the universe, which is a very big thing, then why is it so hard to
find? And what is it made up of that makes it so hard to see?
hue
(4,949 posts)Dark matter is made up of several particles: axions, supersymetric particles or WIMPS.
Botany
(70,508 posts)I was taught that the universe was made up of 4 things:
Strong binding forces, weak binding forces, electromagnetism, and gravity
are those particles part of those 4 things?
hue
(4,949 posts)Cold Dark Matter particles float around in/all over space and on a large scale they interact somehow with gravity. Ther is overwhelming indirect evidence that Dark Matter exists. Weakly Interacting Massive Particles (WIMPs) probably interact via the Weak force somehow maybe with gravity. So the many detectors that experimentalists have set up inside mountains, mines, in outer space (The Alpha Magnetic Spectrometer) are searching for particles that leave some evidence of interacting with the detectors. Some detectors, for example, look for vibrations or signatures of WIMPS as they "bump" into crystal molecules and cause vibrations. Dark Matter particles do not interact with the electromagnetic force hence they cannot be seen.
Yes we were taught that the Universe is made up of 4 forces. They make up the forces in the Standard Model. Dark Matter particles go beyond the Standard Model. (Einstein did not believe in physics beyond the SM.) And the Standard Model was never really complete but physicists hope that the Higgs boson would help in completing it. Yet some questions remain about the Higgs and some physicists think that there are really several Higgs-type bosons and that this will be a bridge to supersymmetry. The mass of the Higgs boson that was found at the LHC last year falls exactly where a certain group of supersymmetry physicists predicted it would be.
This year and the next few years some aspects of physics will become clearer.
firenewt
(298 posts)is totally converted to energy. Since matter basically condenses from energy, dark matter condenses from dark energy. At least that is what I think. I've been wrong before so consume at your own risk.
WillyT
(72,631 posts)RedCloud
(9,230 posts)kickysnana
(3,908 posts)Everything he did seemed to involve the effects of dark matter.
neverforget
(9,436 posts)triplepoint
(431 posts)where ZPE = Zero Point Energy
That is meant as a serious question.
.
.
This is fiction(for now...):
Manifestor_of_Light
(21,046 posts)Stuff goes in, nothing comes out.
It's called Hoarders.
My mother was a hoarder and it didn't bother her at all, unlike the people on the show.
It took me 6 years to clean it out after she died, going up there on weekends. She and her mother both lived thru the Depression so they were serious hoarders.
Really messed up my childhood. I really sympathize with the children on the show who were like i was. I could never have a birthday party with non-family, and no sleepovers with friends.
I think the event horizon is the city limit sign.
MADem
(135,425 posts)That said, this is a fascinating development....we'll see what the future brings...
sellitman
(11,606 posts)Any questions?
Glad I could clear that up for you.