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  • by sandy_mcd ?? Sun Mar 25, 2007 7:42 pm John T wrote:However, hydrocarbons such as ethane and methane have been found in cometary tails such as comet Hyakutake ...By a process of irradiation, hydrocarbons in the upper atmosphere would mix with atmospheric hydrogen and oxygen, generating formaldehyde.Once formed, various types of sugars and starches would be further generated to form polymers.It i
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