Tuesday, July 25, 2017
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in
This news story is archived which means that, while it is still available to view, the information contained within may be outdated and the original source site/link may no longer be viewable.

For the most recent stories, please visit either the site's home page or main news section.

Is the Sun surrounded by dark matter ?

Posted on Sunday, 12 August, 2012 | Comment icon 10 comments | News tip by: Waspie_Dwarf


Image credit: NASA

 
University of Zurich researchers have made the claim after building a simulation of the Milky Way.

The team believe that previous techniques have underestimated the amount of dark matter present in the universe. "We are 99 per cent confident that there is dark matter near the Sun," said lead author Silvia Garbari. Dark matter is a theoretical and directly undetectable type of matter that is thought to account for a large part of the total mass of the universe.

"This could be the first evidence for a 'disc' of dark matter in our Galaxy, as recently predicted by theory and numerical simulations of galaxy formation, or it could mean that the dark matter halo of our galaxy is squashed, boosting the local dark matter density," said Garbari.

"The researchers then developed a new unbiased technique that recovered the correct answer from the simulated data."

  View: Full article

 Source: Economic Times


  Discuss: View comments (10)

   


 
Recent comments on this story
Comment icon #1 Posted by papersamuel on 12 August, 2012, 14:21
What if Dark Matter was a living entity, a conscious entity? I saw this video yesterday and found it interesting that this article showed up after I had seen this video. fast forward to 4:25, in the lower left hand side of the screen you will see what looks like a orb with a tentacle sticking out of it. Now this video is all about UFOS but what if (if this is true footage) this particular scene was actually dark matter either energizing the sun or might be gaining energy from the sun. 52 seconds shows a pretty cool ufo around the sun. Ive also seen videos of stuff flying into the sun, but for ... [More]
Comment icon #2 Posted by Imaginarynumber1 on 12 August, 2012, 23:14
What if Dark Matter was a living entity, a conscious entity? I saw this video yesterday and found it interesting that this article showed up after I had seen this video. fast forward to 4:25, in the lower left hand side of the screen you will see what looks like a orb with a tentacle sticking out of it. Now this video is all about UFOS but what if (if this is true footage) this particular scene was actually dark matter either energizing the sun or might be gaining energy from the sun. 52 seconds shows a pretty cool ufo around the sun. Ive also seen videos of stuff flying into the sun, but for... [More]
Comment icon #3 Posted by notoverrated on 12 August, 2012, 23:33
so the only way they know dark matter is there is because there is unaccountable matter in the universe? that's some problem solving right there.
Comment icon #4 Posted by Waspie_Dwarf on 12 August, 2012, 23:37
so the only way they know dark matter is there is because there is unaccountable matter in the universe? that's some problem solving right there. Pretty much. In simplified form (so that I can understand it ) how matter effects gravity is well understood and measurable. Observing galaxies and other objects in the universe shows that they are effected by more gravity than can be accounted for by normal matter, hence dark matter must exist.
Comment icon #5 Posted by shaddow134 on 15 August, 2012, 23:41
Again the mythical Dark Matter,but Where's the proof ? Dark matter versus Modified Gravity.Where do people stand? http://www.newstates...rk-matter-exist http://emsnews.wordp...as-i-predicted/ http://www.telegraph...ists-claim.html
Comment icon #6 Posted by sepulchrave on 16 August, 2012, 5:39
Again the mythical Dark Matter,but Where's the proof ? Dark matter versus Modified Gravity.Where do people stand? There is a lot of evidence for dark matter. It seems to me that most criticisms of dark matter stem from the fact that we haven't found it yet. Of course if it actually is ``dark'' - i.e. doesn't interact with electromagnetic fields - then it really isn't that surprising that we haven't found it yet. I personally don't like dark matter (and I especially don't like dark energy). I really don't like modified Newtonian dynamics (MOND); I think the way they have to rewrite the operator... [More]
Comment icon #7 Posted by Pyridium on 16 August, 2012, 19:46
Matter is defined as an atom. Dark matter, should be called "dark particles", because it is particles that have not formed into an atom. All matter, atoms, have a gravitational force...pull. All dark particles have the opposite force,..push, or as I call it, anti-gravity. Dark particles do interact with matter, the particles are simply "pushed away" from normal, atom matter. Dark matter is at rest while dark energy is the particles moving at close to the speed of light. For a sense of scale, 1 hydrogen atom can contain trillions of trillions of dark particles in the same volume of space. Again... [More]
Comment icon #8 Posted by sepulchrave on 16 August, 2012, 21:03
Matter is defined as an atom. Dark matter, should be called "dark particles", because it is particles that have not formed into an atom. Sure. All matter, atoms, have a gravitational force...pull. All dark particles have the opposite force,..push, or as I call it, anti-gravity. No. Gravity is a mutually attractive monopole force which is proportional to a property we call ``mass''. An object with a positive mass will experience a gravitational attraction towards other objects with positive masses, and gravitational repulsion towards other objects with negative masses (as of yet no negative mas... [More]
Comment icon #9 Posted by shaddow134 on 16 August, 2012, 23:35
Sure. No. Gravity is a mutually attractive monopole force which is proportional to a property we call ``mass''. An object with a positive mass will experience a gravitational attraction towards other objects with positive masses, and gravitational repulsion towards other objects with negative masses (as of yet no negative mass object has been experimentally identified). The entire prediction of dark matter rests on it having (and, often, only having) positive mass. Perhaps you are thinking of ``dark energy''? The two are quite different. No. Dark matter interacts with regular ``hadronic'' and ... [More]
Comment icon #10 Posted by sepulchrave on 17 August, 2012, 2:42
How can you say what Dark Matter or Dark Energy does or how it interacts,there is no proof whatsoever that they exist. You claim that Dark Matter has gravitational mass from what Evidence? Dark Matter is still theoretical and nobody is certain that it exists.. Dark matter wasn't hypothesized ``just because''. It was hypothesized because the rotation and collisions between galaxies indicated that - if gravity according to General Relativity is correct - there should be a significant additional quantity of mass in the outer halo of these galaxies. Since there is no visible evidence for this mass... [More]


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

5949377
256161
168300

 
New species of giant sunfish discovered
7-24-2017
Marine researcher Marianne Nyegaard has identified the first new species of sunfish in over 130 years.
Nazi gold reportedly found in WWII shipwreck
7-24-2017
A chest thought to be filled with Nazi gold has been found in the wreckage of the scuttled SS Minden.
Mystery woman 'wails through letterboxes'
7-23-2017
Several households in England have been plagued by a woman crying through their letterboxes at night.
Robot ventures inside Fukushima reactor 3
7-23-2017
Scientists in Japan have identified what could be fuel debris within the devastated nuclear reactor.
Other news in this category
SpaceX ditches plans for 2018 Mars landing
Posted 7-21-2017 | 4 comments
Plans to land a modified version of the company's reusable Dragon capsule on Mars have been scrapped....
 
Today marks 48 years since first Moon landing
Posted 7-20-2017 | 13 comments
Buzz Aldrin and Neil Armstrong made history when they set foot on the lunar surface 48 years ago today....
 
NASA reveals amazing new Pluto flyover video
Posted 7-16-2017 | 14 comments
The footage has been constructed from the thousands of photographs taken by the New Horizons probe....
 
NASA doesn't have the funds to land on Mars
Posted 7-14-2017 | 24 comments
The space agency has admitted that it cannot currently afford to land humans on the surface of Mars....
 
Juno offers up stunning new images of Jupiter
Posted 7-13-2017 | 10 comments
The space probe has captured staggeringly detailed shots of Jupiter's centuries-old Great Red Spot....
 
Juno set to fly over Jupiter's Great Red Spot
Posted 7-10-2017 | 1 comment
NASA's Juno probe will soon be embarking on a long-awaited flyby of Jupiter's most prominent feature....
 
Mars may be a lot more toxic than we thought
Posted 7-7-2017 | 8 comments
New research has shown that the Martian soil is quite an inhospitable environment for microbial life....
 
Astronomers discover methanol on Enceladus
Posted 7-5-2017 | 11 comments
An unexpectedly high amount of the organic molecule has been found coming from Saturn's icy moon....
 
Hawking: 'Trump could turn Earth in to Venus'
Posted 7-5-2017 | 177 comments
In an interview on his 75th birthday, Professor Stephen Hawking warned of the dangers of global warming....
 
First Mars rover landed 20 years ago today
Posted 7-4-2017 | 2 comments
It has been exactly two decades since NASA's Pathfinder mission touched down on the surface of Mars....
 
NASA to launch asteroid deflection mission
Posted 7-2-2017 | 8 comments
For the first time ever, an asteroid deflection technique for planetary defense is set to be tested out....
 

 View: More news in this category
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.7 Unexplained-Mysteries.com 2001-2017
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ