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Author Topic:   Where did all this water come from?
Member (Idle past 1756 days)
Posts: 1593
From: Wisconsin
Joined: 05-15-2003

Message 17 of 21 (513777)
07-01-2009 2:48 PM
Reply to: Message 16 by lyx2no
07-01-2009 2:42 PM

Re: Lots of Comets
Using the values you supplied I get 0.12% H20 for a comet. Would you like to take a stab at what percentage of he Earth is ocean? 0.11%. Looks like the Earth is a big ol' comet.

Assuming these numbers are correct, it seems to imply that rocky bodies, when they formed out of the cloud around our protosun, contained about .12% water. Which doesn't sound too hard to believe to me, so much of the water in our planet probably was there to begin with.

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 Message 16 by lyx2no, posted 07-01-2009 2:42 PM lyx2no has not yet responded

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