> Anders Sandberg wrote:
> >
> > Most likely the planets in the life zone will be denser than the planets
> > outside, since the heat will have evaporated volatiles like hydrogen and
> > helium (and thus reduced their mass).
>
> While this is a logical answer, recent extrasolar planet discoveries
> show that this is not always the case, or else their data is
> significantly off.
Yes, 51 Pegasi is weird. But we don't know if it really is a gas
giant, maybe there are stone giants too.
(I think that system is going to be on my "must see" list once I get
out of this solar system).
-----------------------------------------------------------------------
Anders Sandberg Towards Ascension!
nv91-asa@nada.kth.se http://www.nada.kth.se/~nv91-asa/main.html
GCS/M/S/O d++ -p+ c++++ !l u+ e++ m++ s+/+ n--- h+/* f+ g+ w++ t+ r+ !y