Re: NASA Finds Direct Proof Of Dark Matter




"Timberwoof" <timberwoof.spam@xxxxxxxxxxxxxxx> wrote in message
news:timberwoof.spam-061AAA.10203423112006@xxxxxxxxxxxxxxxxxxxxxxxxxxx
In article <m8l9h.10114$T6.3323@xxxxxxxxxxxxxxxxxxxxxx>,
"George" <george@xxxxxxxxxxxxxxx> wrote:

"Timberwoof" <timberwoof.spam@xxxxxxxxxxxxxxx> wrote in message
news:timberwoof.spam-6F1FFC.00052123112006@xxxxxxxxxxxxxxxxxxxxxxxxxxx
In article <l8fam21vrrvfqci955sdppe89ove79ast9@xxxxxxx>,
J. Taylor <nchiwana@xxxxxxxxxxxxxxxxxxxx> wrote:

http://www.sciencedaily.com/releases/2006/08/060821133930.htm

Source: National Aeronautics And Space Administration
Date: August 21, 2006

NASA Finds Direct Proof Of Dark Matter

Dark matter and normal matter have been wrenched apart by the
tremendous collision of two large clusters of galaxies. The
discovery,
using NASA's Chandra X-ray Observatory and other telescopes, gives
direct evidence for the existence of dark matter.

<snip>

In galaxy clusters, the normal matter, like the atoms that make up
the
stars, planets, and everything on Earth, is primarily in the form of
hot gas and stars.

<snip>

The hot gas in this collision was slowed by a drag force, similar to
air resistance. In contrast, the dark matter was not slowed by the
impact, because it does not interact directly with itself or the gas
except through gravity.

<snip>

Cool.

We know that ordinary matter interacts with other ordinary matter with
all four forces (gravity, electromagnetic, weak nuclear, and strong
nuclear). In contrast, dark matter interacts with itself and normal
matter only through the gravitational force. That's interesting. IOW,
it
doesn't interact electrically, magnetically, chemically, or with
nuclear
reactions. That's pretty neat. It would make things heavier but
otherwise not significantly affect their interactions with other
things.
It's not made of baryons. It's not clear how it would stick to
ordinary
matter or even how it would get concentrated in one place like a
planet.

--
Timberwoof <me at timberwoof dot com> http://www.timberwoof.com
It's easy to say a war is so important your neighbor should go fight
it
for you.

I believe the candidate particle is the neurtralino:

http://en.wikipedia.org/wiki/Neutralino

Ah, it is expected to interact with the weak nuclear force. That doesn't
change much: it's still damn near impossible to detect. Of course, that
gives it all the properties needed by kooks to justify any wacky
hypothesis they come up with. Let's start a betting pool to guess when
the first kook claims he has build a neutralino detector, back-pack
sized and battery-operated. But he can't get a patent for it because Big
Science has blacklisted him and he doesn't want to give away his secrets
to anyone who isn't open-minded enough to understand True Science.

That has a familiar ring to it, doesn't it? lol

George


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