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Re: Bernd: Meteor May Not Have Destroyed Dinosaurs Afterall?
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- Date: Wed, 6 Oct 1999 14:45:39 EDT
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In a message dated 99-10-06 10:42:34 EDT, you write:
Impact debris from Comet Shoemaker-Levy 9 on Jupiter was still visible
in Jupiter's upper atmopshere a year after the impact. The particles
were visible from Earth (~450 million miles away) on a planet with
many times more gravity than Earth. If particles can stay in the
atmosphere of a giant planet for a year, I don't see why particles
can't stay suspended for years in the atmosphere of a much smaller planet.
Ron, what other choice do the particles have in staying suspended in the
atmosphere of a gas giant like jupiter? There's no ground to settle out onto.
Perhaps the finer particles in Jupiters upper reaches of it's atmosphere is
preserved because jupiters gravity is too strong to allow these particles to
dissipate into space any quicker?
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