I really, really doubt this hypothesis. It would require millions of comets to provide enough water.
Maybe there were super-Democrats on primordial Earth, and instead of just crying a river, they went the whole hog.
What sort of dipsh*t 'scientist' can only percieve these two possibilities?
Isn't that how some nazis believed the master race got here?
Seriously.
The oceans came from runoff from the rain in Washington State. I thought everyone knew that.
I cast my vote for the water from comets theory.
It's Bush's fault.
Ping.
I have read that this theory surmises that we are constantly being "hit" with small comets of water all the time. Interesting theory. It would also explain water on Mars.
This comet theory is, imho, just more liberal/left junk-science. It demonstrates once again the degrading effect of the liberal/left mentality on academia and scientific investigation. The classical and much more likely theory is that the earth's water was formed by the ignition of hydrogen and oxygen in the atmosphere. Mix hydrogen and oxygen in a testube and ignite it and you get a reaction in the form of an explosion, of which one of the by-products is water.
"The empirical habit of thought, on which all the scientific achievements of the past were founded, is opposed to the most fundamental principles of Ingsoc (english socialism)." --'1984'
"Science and technology were developing at a prodigius speed, and it seemed natural to assume that they would go on developing. This failed to happen... partly because scientific and technical progress depended on the empirical habit of thought, which could not survive in a strictly regimented society. ...Certain backward areas have advanced, and various devices, always in some way connected with warfare and police espionage, have been developed, but experiment and invention have largely stopped." ---'1984'
In related news, rain is caused by meteor showers.
What's the liklihood that comet ice is going to bear any resemblance to water that has been on earth for at least 4000 years and been evaporated and rained and eroded rocks and been filtered through bedrock and drained back into the ocean any number of times?
Comets May Be the Source of Earth's Water
http://www.universetoday.com/am/publish/comet_water_source.html?2332006
"Because of their large ice content, comets were leading candidates for many years, but recent analysis of comet water has shown that comet water is significantly different from typical ocean water on Earth. Asteroidal ice may give a better match to Earth's water, but until now, any ice that the asteroids may have once contained was thought to either be long gone or so deeply buried inside large asteroids as to be inaccessible for further analysis. The discovery of main-belt comets means that this ice is not gone and is still accessible (right on the surfaces of at least some objects in the main belt, and at times, even venting into space)."
Clandestine comets found in main asteroid belt - Earth oceans origin
newscientist space | 23 March 2006
Posted on 03/24/2006 5:26:05 AM EST by S0122017
http://www.freerepublic.com/focus/news/1602203/posts
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