[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

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.