[ExI] Double-Earth (Was: kepler study says 8.8e9 earthlike planets)

[Eugen Leitl]

On Fri, Nov 22, 2013 at 11:26:27AM +0100, Tomaz Kristan wrote:
> I think H2 must be the most frequent molecule, and H2O must be the second.
> The third might be CO2, since the carbon is the number 4.

http://en.wikipedia.org/wiki/Abundance_of_elements_in_Earth's_crust

O, Si, Al, Fe, Ca, Na, K, Mg, Ti, H, P etc.

Sorry, neither hydrogen nor carbon are particularly abundant in
Earth's lithosphere.

Universe is different, obviously. There, it's mostly hydrogen,
with a smattering of helium.
 
> Anyway, we don't need to ask ourselves - where all this water came from. We
> rather should ask - where almost all the water has gone?
> 
> 
> On Fri, Nov 22, 2013 at 11:18 AM, Kelly Anderson <kellycoinguy at gmail.com>wrote:
> 
> > On Fri, Nov 22, 2013 at 2:58 AM, Tomaz Kristan <protokol2020 at gmail.com>wrote:
> >
> >> I guess that a lot of water is a direct consequence of the fact, that the
> >> oxygen is the number 3 most frequent element in the Galaxy. It likely
> >> bounds with the number 1, hydrogen - and there is water. The number three,
> >> helium doesn't bound.
> >>
> >> The real problem might be, why the Earth is so dry?
> >>
> >
> > You may be spot on.
> >
> > I'm pretty sure I read somewhere that water was the most common molecule
> > in the universe... but that doesn't tell you what percentage of the
> > universe is expected to be made up of water though...
> >
> > -Kelly
> >
> >
> > _______________________________________________
> > extropy-chat mailing list
> > extropy-chat at lists.extropy.org
> > http://lists.extropy.org/mailman/listinfo.cgi/extropy-chat
> >
> >
> 
> 
> -- 
> https://protokol2020.wordpress.com/

> _______________________________________________
> extropy-chat mailing list
> extropy-chat at lists.extropy.org
> http://lists.extropy.org/mailman/listinfo.cgi/extropy-chat