From: q3wtxv48o@verizon.net   
      
    wrote in message   
   news:1132725052.301417.180550@o13g2000cwo.googlegroups.com...   
   >   
   > Nog wrote:   
   >> If comets are made from mostly water-ice, some dirt and organic matter   
   >> they   
   >> had to come from a former water planet that blew up somewhere in the   
   >> universe.   
   >   
   > Er, no. Stars are made of hydrogen, so when they go super nova, they   
   > scatter a lot of hydrogen. Further, larger stars makes a lot of oxygen   
   > (see C-N-O cycle fusion) so when bigger stars go super nova, they   
   > scatter a lot of water. That's where the water in comets (and on Earth)   
   > comes from: stellar nucleosynthesis. The same also applies to carbon   
   > and nitrogen - they're generated in stars.   
   >   
   > Comets - with water, organics, and rock dust - needn't come from   
   > planets at all.   
   >   
   > Mike Miller   
      
   They must come from planets. Organics don't form in total vacuums. You need   
   a planet with an atmosphere to develop life. Then an exploding star can   
   shatter all the inner planets where water planets form.   
   Scientists hate new theories, don't they.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)