QUESTION:  Do you think that Neptune could ever support life?  Any
type...not just an earth-form?

ANSWER from Chris Burrows on April 26, 1996:

Neptune is a gas giant planet.  That means that it doesn't have a surface (at 
least until the pressures are enormous).  It is also very cold.  So it
certainly 
couldn't support any life form like those on earth, which all require liquid 
water.  Who knows what other strange chemistry for life is possible.  We
certainly have no idea what life could look like in such a hostile place.  So 
I'd say that its very unlikely, but maybe I'm just limited by my imagination.