Re: starship-design: Re: Aliens

[kyle <stk@sunherald.infi.net>]

Timothy van der Linden wrote:
> 
> Antonio wrote:
> 
> >... near sulforous vents on the sea floor - possibly
> >also exist _somewhere_ on Venus and/or the gas giants.
> 
> If that is so, than indeed life is much more likely to exist there. A stable
> environment and energy source seem to be the key factors in all the places
> where we think microscopic live evolves.
> I used to think that Venus was too hot to have a usable liquid, but then
> again there are many liquids at a temperature of say 300C.
> 
> >    Gas giants present growing pressures towards their centers, to the
> >point where the "gas" possibly liquefies and then solidifies. Conditions
> >at some "altitude" might resemble the above sulfurous vents or even the
> >surface of Venus itself.
> 
> When gas-planet was mentioned I assumed that the gas was meant to be the
> medium where live evolved.
> Indeed the likeliest place would be somewhere at the border between solid an
> liquid gasses. I think though that the enormous pressures will favour
> certain chemical reactions over others in a very unequal way and thus limit
> the possibilites significantly.
> 
> So in the gas zone the environment is too unstable for new life to get
> stronger before it is killed.
> The liquid zone also is too unstable, unless it is near a solid environment,
> where it can "settle" in a "pool".
> The solid and liquid environments likely favour specific chemical reactions
> and thus limit the amount of different possibilities.
> 
> ! I'm not 100% certain about high pressure favouring certain chemical reactions.
> Is there someone who has more knowledge about this, and who can acknowledge
> or disaffirm my speculations?

Wouldn't the temperatures at the solid region be too hot for life?
>1000C

Kyle