But it is hardly difficult for things to come along and tear off some or all of that atmosphere, be it the solar wind eroding Mars' atmosphere or Pluto's atmosphere freezing solid for a good chunk of the year, to the sun ripping off Mercury's atmosphere and Earth pulling off all of the moon's atmosphere.
On Wed, Aug 3, 2011 at 9:12 AM, Zan Lynx <[email protected]> wrote: > On 8/3/2011 7:32 AM, Johannes Trimmel wrote: > > > If you accept the Megatraveller extended System generation tables, you > > can have Vaccuum worlds of nearly any size. > > >From everything I understand about the theories of planet development, > that isn't realistic at all. > > Any gravity well of sufficient size will attract more mass and the light > elements will rise to the top. In other words, atmosphere. > > The more gravity present, the more of the lighter elements will stay on > the surface which explains gas giants. > _______________________________________________ > GurpsNet-L mailing list <[email protected]> > http://mail.sjgames.com/mailman/listinfo/gurpsnet-l > -- All persons possessing any portion of power ought to be strongly and awfully impressed with an idea that they act in trust and that they are to account for their conduct in that trust to the one great Master, Author, and Founder of society. -Edmund Burke _______________________________________________ GurpsNet-L mailing list <[email protected]> http://mail.sjgames.com/mailman/listinfo/gurpsnet-l
