Talk:Carbon planet
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On the 3d line in italics "for enviornmental company see carbon planet" I suspect this is an artfact of a past revision/What is the meaning? I clicked on carbon planet and got a web site that offered to manage my carbon emissions to illiminate my carbon foot print for a fee/ Line 3 should be deleated?Ccpoodle 04:22, 17 October 2007 (UTC) Why there are no carbon planets (or moons) in the Solar System? There are four gas giants, plenty of rocky bodies composed mostly of silicates and iron, some ice bodies; but where did the carbon go? Carbon is one of the most abundant element in the universe. So why in the Solar System this is so rare?
--Grzes 19:09, 20 November 2005 (UTC)
- Carbon in the solar system tends to be bound up as hydrocarbons (as the most abundant element in the solar system is hydrogen, which readily reacts with carbon). All of the gas giant planets have substantial amounts of methane in their atmospheres. Earth did too in its early life (when it had a reducing atmospher instead of an oxidizing one). I'm kind of suspicious of the "carbon planet" idea in general for this reason (though I suppose it could happen in a hydrogen-poor environment near a bright star, if oxygen and nitrogen were already bound up into compounds). Abundance of the chemical elements lists oxygen as much more common than carbon, suggesting formation of CO2 in hydrogen-poor environments, though I suppose it's possible some bizzare set of circumstances would allow for rare exceptions. --Christopher Thomas 22:16, 8 January 2006 (UTC)
Rare? Well, maybe not so rare. —The preceding unsigned comment was added by 87.207.245.228 (talk • contribs) on 20:53, 7 June 2006.
I doubt that a planet could be made entirly of carbon, Im sure there must be some silicon in there too. and, if hydrogen does not combine with oxygen to form water than it will form hydrocarbons. So, creatures on these planets might have a hydrocarbon as a solvent, But this is unlikely (not impossible) because hydrocarbons are poor solvents of salts (cite: encyclopaedia brtinnica 2006 digital). Maybe not full on carbon planets, but planets with larger amounts of carbon are and interesting prospect. T.Neo 10:06, 11 September 2007 (UTC)
--infinitussollux 07:07, 07 July 2007 (CST)
Why is it assumed that water is required for the existance of extraterrestial life? —Preceding unsigned comment added by 168.243.218.53 (talk) 07:34, 21 December 2007 (UTC)
