Posted by
michael
on from the space-is-wide-and-space-is-deep dept.
chill writes "CNN is reporting that "Scientists have discovered evidence that hordes of dark, miniature galaxies surround ordinary galaxies, lending credence to the theory that the universe is comprised mostly of cold, dark matter." The study was partly funded by NASA and the U.S. DOE."
More and more...
by
Chasing+Amy
·
· Score: 3, Interesting
It's looking more and more like the perennial complaints by cosmologists and other physicists and astronomers that there's too much mass in the universe for it all to be accounted by visible galaxies, is holding true.
Yes, the mass of certain neutrinos and other "nearly-massless" particles does figure in, just like we've been theorizing and hearing for a long time. However, we are continually finding more and more of this evidence that there are other sources of mass in dark matter.
It'll be interesting to see the theories on what these "dark matter galaxies" are. Is it some form of dark baryonic matter? Or something else? Quite exotic, either way...
--
Chasing Amy
(We all chase Amy...)
"The more corrupt the state, the more numerous the laws"-Tacitus
Dark Matter Overview
by
rlotun
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· Score: 4, Informative
Re:Color distortion?
by
mmarlett
·
· Score: 3, Insightful
Okkaaay...
No one said anything about the life-sustaing capacities of dark matter, so I'm not sure what to tell you on that one.
Scientist learn about what is in stars / planets by breaking apart the light that comes from / is reflected off of them. It's called spectroscopy, and you can learn about the basics of it here.
But the long and the short of it is that what they are talking about is most certainly "scientifically" proven. It's all pretty simple once you do your homework. Visit a local telescope: even the most low-rent ones have a prism, a light bulb a few filters to show you how to split light to figure out its spectra. It's a fundamental of astronomy that astronomers tend to gloss over because lay people just get glassy eyed if they try to explain it every time.
Cold, Dark matter here on earth!
by
Muad'Dave
·
· Score: 4, Funny
So that's what my wife is made of! I have to keep the furnace on 'broil' in the winter, and I've seen her step into the shade of a palm tree in the Caribbean and start shivering. Who should I send a skin sample to?
-- Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.
Slashdot Mirror
It's looking more and more like the perennial complaints by cosmologists and other physicists and astronomers that there's too much mass in the universe for it all to be accounted by visible galaxies, is holding true.
Yes, the mass of certain neutrinos and other "nearly-massless" particles does figure in, just like we've been theorizing and hearing for a long time. However, we are continually finding more and more of this evidence that there are other sources of mass in dark matter.
It'll be interesting to see the theories on what these "dark matter galaxies" are. Is it some form of dark baryonic matter? Or something else? Quite exotic, either way...
Chasing Amy
(We all chase Amy...)
"The more corrupt the state, the more numerous the laws"-Tacitus
For those of you, like me, who have only a cursory knowledge of Dark Matter check this overview of Dark Matter
"This statement is false."
Okkaaay ...
No one said anything about the life-sustaing capacities of dark matter, so I'm not sure what to tell you on that one.
Scientist learn about what is in stars / planets by breaking apart the light that comes from / is reflected off of them. It's called spectroscopy, and you can learn about the basics of it here.
But the long and the short of it is that what they are talking about is most certainly "scientifically" proven. It's all pretty simple once you do your homework. Visit a local telescope: even the most low-rent ones have a prism, a light bulb a few filters to show you how to split light to figure out its spectra. It's a fundamental of astronomy that astronomers tend to gloss over because lay people just get glassy eyed if they try to explain it every time.
So that's what my wife is made of! I have to keep the furnace on 'broil' in the winter, and I've seen her step into the shade of a palm tree in the Caribbean and start shivering. Who should I send a skin sample to?
Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.