To: SunkenCiv
There are several theories to what causes the Oort Cloud. One is that the Solar System enters a molecular cloud or enters a very dense area of gravity in the Galaxy as it travels around the galactic center. My theory that a star passes close enough to disturb the Oort cloud leading to mass extinctions on earth. Carl Sagan in his book "Comet" outlines the theories.
7 posted on
08/03/2006 9:46:34 PM PDT by
garbageseeker
(It's not the size of the dog in the fight, it's the size of the fight in the dog.”Samuel Clemmens)
To: garbageseeker
The Oort Cloud was dreamed up as a kludge for the generally accepted model for solar system formation. There has been no direct observation of it.
Google
8 posted on
08/03/2006 9:56:31 PM PDT by
SunkenCiv
(updated my FR profile on Thursday, July 27, 2006. https://secure.freerepublic.com/donate/)
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