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Re: starship-design: re: interstellar planets supporting life

> I was wondering about that.  They've found that the temp of planets like
> Earth and Venus are much moredetermined by the temperature of its core, and
> the nature of its crust.  So the surface temp could be similar.  Life forms
> could be based of cemosynthasis like the stuff living near ocean bottom
> volcanic vents.  Is anything down there a oxegen producer?  Sounds like a lot
> of the evolution could be similar.  Fish, legged animals, etc.
> Kelly

Photosynthesis is the only known oxygen producing reaction
in life that I know about. Thermal reactions don't supply a lot
of surplus energy however. That is the key factor.