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Re: (meteorobs) Dark Matter/ Anti-matter collisions
I'm no expert in such matters, but if there were `chunks` of
anti-matter drifting around in our vicinity, surely we would have
observational evidence such as highly energetic explosive events
on the moon and/or other planets ? Also, wouldn't it be likely to
interact energetically with the dust, cosmic particles or stray
hydrogen atoms floating around out there long before reaching
earth's atmosphere ?
Andrew Simmons
In message <l03010d00b13d4910ac90@[153.9.11.239]>, Terry
Richardson <richardsont@cofcdot edu> writes
>There is a big scientific effort both theoretical and
>observational. Most of the observational work so far has
>been to shoot down possibilities. The Hubble telescope for
>example has searched for the myriad of low mass red stars
>in globular clusters that was proposed as one possibility
>and found none at all.
>[...]
>Antimatter is being lookied into and the April 1988 "Scientific Americal"
>has the latest on that. It is not considered a dark matter possibility but
>if there are chuncks of the stuff drifting around, they would be our worst
>nightmare indeed
>> Dark matter has got to be an observer's worst nightmare....
>>maybe. If dark matter is made of some non-luminous, non-light-
>>reflecting material, what would we see if a chunk of it entered our
>>atmosphere? Of course by that time it would be too late to do
>>anything about it, and if it was big enough to cause cataclysm, would
>>we ever even know what hit us? And, what about the possibility of
>>collision with large objects composed of anti-matter? The
>>destructive effects could be magnitudes greater than collision
>>with a regular-matter object. At least we would see it coming.... I think.
>>Dave G
>
>Terry Richardson
>Department of Physics and Astronomy
>College of Charleston
>Charleston, SC 29424
>843 953-8071 phone
>http://www.cofcdot edu/~richardt/
--
meteors@zpokdot demon.codot uk
http://www.zpokdot demon.codot uk/index.html
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