Re: Planets

>Oh I just meant a layout like the solar system, rocky planets inwards
in 
>the biozone, then ateroid belt, then gas giants outwards in cold space.

>And they are all in neat nearly circular orbits (except Pluto -
unimportant).

Its a very convenient arrangement for life on earth, but then that is
why 
there is life on earth (someone wins the lottery).

If I have understood the astronomers correctly, bearing in mind I am a 
biologist, then this convenient arrangement may not be the norm, or even

that common.

John

>Thanks. I am not familiar with the pulsar planets end of life; more
>involved with the extrasolar planets around stars more or less like
>our own studies these days. But you haven't really explained what you
>mean by "Sol-like orbits" from your first post. Or, if you did, I
didn't
>understand the explanation you gave.
>
>Mk

Dr PJD Lambshead
Head, Nematode Research Group
Department of Zoology
The Natural History Museum
London SW7 5BD, UK.
Tel +44 (0)20 7942 5032
Fax +44 (0)20 7942 5433
http://www.nhm.ac.uk/zoology/home/lambshead.htm
http://www.nhm.ac.uk/zoology/nematode/index.html

What a wonderful thing is the cat! on making it God said "That's that!
Supurrnatural selection has brought us purrfection -
which is a great relief to Me after My earlier mistake with the nematode
worm
(Rowena Sommerville)