Re: Planetology

Michael Lorrey (
Tue, 12 Nov 1996 19:53:13 -0500

Anders Sandberg wrote:
> On Mon, 11 Nov 1996, Michael Lorrey wrote:
> > Do you think that there is a
> > possibility that we would find the most dense planets of any solar
> > system in the so called "zone of life" that Earth occupies? If so, this
> > would greatly help locate extrasolar planets.
> 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.