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Space & Astronomy

Dwarf galaxy lurking just outside Milky Way

By T.K. Randall
January 16, 2011 · Comment icon 12 comments

Image Credit: NASA
The invisible 'Galaxy X' is thought to contain an overwhelming amount of dark matter.
Dark matter is an invisible material that scientists think makes up more than 80 percent of the mass in the universe, we can not see the dark matter directly but we can observe its gravitational effects. Sukanya Chakrabarti of the University of California has calculated that the new unknown dwarf galaxy may be 260,000 light-years away.
"All of these dark matter studies are really starting to map out the distribution of dark matter," said Pooley, who was not part of Chakrabarti's team. "Any information we get is extremely valuable. "


Source: National Geographic | Comments (12)




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Recent comments on this story
Comment icon #3 Posted by SlimJim22 13 years ago
nibru. I thought this would get some people excited. It shall hopefully be an interesting area to explore in the future. Maybe we can learn about dark matter and who knows what could be hiding in there.
Comment icon #4 Posted by philbo 13 years ago
I think this farytale isn't science. Inventing absurtities like dark matter & dark energy to correct a flaw in math...is about as usefull as saying God did it. The math are clearly wrong...find out why don't dream fantasy ..otherwise you arm the religious
Comment icon #5 Posted by angi chiesa 13 years ago
Does anyone know the diffence betwee so called dark matter and anti matter. It is hard to believe in such.Is it just a mathematical anomally.
Comment icon #6 Posted by Paracelse 13 years ago
nibru. Which one, the Babylonian, the Sithin-ian, the collision (a little far from us to happen in 2012 being 260 000 light years away) or the game "secrets of the ages"?
Comment icon #7 Posted by DKST 13 years ago
nibru. *Sigh* It was only a matter of time before someone brought that up. It's an interesting article, I hope we can learn more about it who knows what's lurking in there and right on our doorstep too. Would it be possible to probe in the near future?
Comment icon #8 Posted by Rhinopolis 13 years ago
It's so much fun how the unknowns of the universe allow for mystery to exist. Imo, dark matter is the yin and yang of the universe to all that we currently understand, and I believe it will be many more years before we're impacted directly by any unknown forces that may exist in another galaxy. After december 21st 2012 comes and passes, we can start looking towards the next event horizon. Apophis 2036?
Comment icon #9 Posted by Silus 13 years ago
Does anyone know the diffence betwee so called dark matter and anti matter. It is hard to believe in such.Is it just a mathematical anomally. Anti matter is the opposite of matter. So an electron and it's opposite, a positron are the same but have different charges. Same with a proton and neutron. Dark matter is theoretically the thing that makes up a vast percentage of the universe, depending on where you get your information from, don't know much about it's make up.
Comment icon #10 Posted by Mentalcase 13 years ago
I think this farytale isn't science. Inventing absurtities like dark matter & dark energy to correct a flaw in math...is about as usefull as saying God did it. The math are clearly wrong...find out why don't dream fantasy ..otherwise you arm the religious Do you believe all matter is visible? It's not just a flaw in math, BTW. There's plenty of other observations that back up it's existence. Dark matter was postulated by Fritz Zwicky in 1934 to account for evidence of "missing mass" in the orbital velocities of galaxies in clusters. Subsequently, other observations have indicated the prese... [More]
Comment icon #11 Posted by StarMountainKid 13 years ago
It seems to me that before dark matter was discovered theorists didn't neede it in their explanations of the evolution of the universe after the big bang. Since dark matter has been detected its existence is crucial to the formation of the universe as we observe it. I'm wondering, in a multiverse, would every universe contain dark matter, and would it exist in the same proportion to other kinds of matter as we observe it in our universe? This is another finely-tuned variable we need to add to all the others that enable a universe like ours to exist. As an aside, what is the purpose of dark ene... [More]
Comment icon #12 Posted by stevewinn 13 years ago
there is a good program on the discovery channel called 'how the universe works' episode - Galaxies explains the past, present and future of the milky way and its local group. good watch. the entire series can be downloaded from ez.tv scroll for the program http://eztv.it/shows/81/discovery-channel/


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