From: JamesL@Lugoj.com   
      
   psturroc@gmail.com wrote:   
   > Are there any rocket fuels -- existing or potential -- that are less   
   > polluting than kerosene or hydrogen?  If so, are any of them   
   > economically feasible?   
      
   I'm surprised no one has suggested solar power. ;-)   
      
   A simple ground or space based variable-focus mirror and a solar-heated   
   ramjet is all you need! Needs, ah, a few details worked out....   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)