Quote:
Originally posted by eburacum45@Sep 9 2004, 12:34 PM
Well, with a mass 5 times that of Jupiter, and a gravity of 10 gee, this planet almost certainly has a hydrogen rich atmosphere. By combination with oxygen there may well be a lot of water in the atmosphere, and possibly a deep ocean layer overlaying the core; but there will almost certainly be no free oxygen...
oxygen combines too readily with hydrogen to remain in any great quantities.
This does not rule life out; but it does rule aerobic life out.
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Please tell me more about your statement that the planet must be hydrogen-rich: I don't think that the facts strictly make that a necessity.
Also, I have seen that several have assumed that this planet's gravity will simply be 4-5 times that of Jupiter's gravity, an assumption I also think is not necessarily true. Please elaborate...
Having said that, I find the rest of your comments intriguing as well, especially the possibility of a deep ocean.
Thanks