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Author Topic: More Missing Cosmic Matter Found  (Read 1247 times)
Phoenix
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« Topic Start: May 21, 2008, 12:36:48 am »

After an extensive search, astronomers say they have definitely found half of the universe's missing normal matter in the spaces between galaxies.
Astronomers have long known that the amount of matter we can see doesn't match up with what's actually there. Normal matter (which includes galaxies, stars and us) makes up only about 4 percent of the universe. This type of matter is also called "baryonic" because it is made of baryons (protons, neutrons and other subatomic particles).


http://www.space.com/scienceastronomy/080520-intergalactic-medium.html
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« Reply #1: May 21, 2008, 08:07:10 am »

After an extensive search, astronomers say they have definitely found half of the universe's missing normal matter in the spaces between galaxies.

Which, of course, is where it has always been suspected to be.  The term "missing" makes a lot of people think something exotic has to be going on.
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« Reply #2: May 21, 2008, 11:19:10 am »

The term "missing" makes a lot of people think something exotic has to be going on.

This is true.
Just because matter is dark doesn't necessarily mean it's exotic (although it could be), it's just not hot or bright enough for us to see it
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