From: tsbrueni@dcn.davis.ca.us   
      
   The Enterprise is in orbit about a collapsing planet (Psi 2000), spiraling in   
   as it goes so that it can obtain the best possible readings on the collapsing   
   planet.  On at least two occasions, a change of the planet's mass is reported,   
   but the planet    
   looked intact to me.  How then could it change its mass?   
      
   On the 2nd occasion, the planet's mass dropped.  But I saw no sign that the   
   planet had lost any pieces of itself.  How could it lose mass?   
      
   At the end, the Enterprise has to do a controlled implosion in its warp   
   engines to escape, throwing it back in time 71 hours.  Spock speculates that   
   this "Time Warp" effect could prove useful some day, yet the crew never   
   attempted a "Time Warp Implosion"    
   in any subsequent episodes.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)