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Re: WWW URLs: Alien Autopsy



For the probable rarity of gas giants see Nature 1995 v 373 p 470

It is possible that rocky planets tumble unless there is a big stabilizing
moon (may have happened to Mars & Venus). Evolving dino and people
equivalents on planets whose axial tilt goes from near 0, to 78, to 42
degrees might be hard.

GSPaul