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Galaxies Floating on a Dark Matter Stream
Darkman, Walkin Dude writes "A team in Switzerland has discovered that most of the small satellite galaxies around the Milky Way's near-twin, Andromeda, are lined up in a single plane that slices through Andromeda's spiral disc. Using images from the Hubble space telescope, soon to be decommissioned, the researchers found that 9 of the 14 of Andromeda's satellites lay on a relatively narrow plane bisecting Andromeda. From the article: 'The team believes the plane could have formed in several ways. In one scenario, the galaxies may have fallen towards Andromeda along an invisible filament of dark matter. Computer simulations show these filaments can form a cosmic web along which galaxies flow.'"
Does dark matter hold our universe together in a web? Perhaps, though this would mean that there is no such thing as truly empty space as a small amount of dark matter would have to exist. Perhaps what lays beneath the edges of our universe is nothing in the sense of it being devoid of dark matter?
Check this out: From this article.
While this article only mentions computer simulations, many scientific groups have gone along further researching, convinced that the cosmic web does exist. Some people have based most of their work on dark matter and the cosmic web though I believe it is still speculation and has yet to be accepted by the science community as a whole. I've read some crazy stuff about dark matter, like how it might be the "gravity particle" that is attracted to matter uniformly and causes the gravitational pull between objects. And even crazier books suggesting that the only way we'll ever be able to communicate between parallel existences is by lowering and raising these gravity particles.
Now, the slashdot community seems to be fairly educated and extremely opinionated so how about it--does dark matter exist? If so, since it is very difficult to detect, what are its defining properties?
My work here is dung.
In another scenario, the Intelligent Designer put them on that specific plane just to see how long it took before somebody noticed and claimed that it must be Dark Matter.
Eric Lerner is looking less and less like a crank with every new cosmological experiment, I think this is exactly what his plasma filament theory of the intergalactic medium has been predicting.
In one scenario, the galaxies may have fallen towards Andromeda along an invisible filament of dark matter.
In another scenario, the Flying Spaghetti Monster might have used His Noodly Appendage to intelligently design it that way. Scientists speculate the arrangement makes it easier for Him to make a bank shot on the 9-ball galaxy.
Study everything, you'll find something you can use - Jason Bourne
Am I the only one who thinks this headline sounds like something some scientist completely pulled out of his ass? "Yeah...so you know dark matter? All the planets are, like, floating on it. And I am TOTALLY stoned...."
Um dude, O'Keefe has been gone from NASA for nine months now, your article link is almost a year old. One of the first things that the new administrator Michael Griffin did when he took over the reins was to try to figure out ways to keep Hubble alive. Griffin's an actual scientist, unlike O'Keefe who's a career-track manager. And thus sees the important of Hubble, which has been indispensible for astronomical research.
Direct from NASA's Hubble page , it says
make world, not war
If they eventually find more evidence for these "dark matter streams", and start naming them, I think "the styx" would be a completely awesome name for such a stream.
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Galaxies Floating on a Dark Matter Stream
So, the old lady was right... it's turtles all the way down.
Want to improve your Karma? Instead of "Post Anonymously", try the "Post Humously" option.
AP - Scientists at the prestigious CERN institute in Switzerland announced late Friday that the so-called 'dark matter', which makes up 90% of the universe, is actually bullshit.
"These findings come as a surprise," stated Dr. Weissmann, lead scientist at the institute. "Before today, we thought dark matter might be, say, an agglomeration of exotic subatomic particles, like muons or 'strange' quarks, signifying a problem with the equations governing space-time. Instead, all that turns out to be bullshit."
Other hypotheses included Cheez-puffs and intelligent end-users. But the conclusive evidence for the new Bullshit Theory of Matter came from the Hubble space telescope, which since 1995 has been sending back data that, according to scientists, is "complete and utter bull."
"Over and over we ran through the equations, and each time we came up with the same answer: This is crap," affirmed Weismann. "It's satisfying, in a way, to be able to say that about your life's work."
-C.
- undoware.ca