From: nospam@127.0.0.1   
      
   jacob navia  writes:   
      
   [snipped for brevity - line length]   
   >   
   > given a temperature of 450 Celsius (842 F) it is not really surprising that   
   > they didn't "laast long". It was incredible that they managed to survive at   
   > all.   
   >   
   > and the pictures returned revealed nothing but rocks.   
   >   
   > Obviously at that temperatures and crushing pressures it would highly   
   > surprising to see anything but rocks.   
   >   
   >> It's time that the atmosphere is explored since temperatures and   
   >> pressures are much more reasonable at altitude on Venus.   
   >>   
   >> But let's temper our hopes for actual life.  What's been detected is a   
   >> chemical signature that could indicate life.  Or it could be from a so   
   >> far unknown chemical process that's unique to the atmosphere of Venus.   
   >>   
   >> Jeff   
   >>   
   >   
   > There is no known chemical process that could generate phosphine.   
      
   I've seen one paper that claims simulated lightning can provide a   
   natural non-life cause for phosphine gas generation:   
      
   > https://epic.awi.de/id/eprint/11998/1/Gli2004a.pdf   
      
   But the results of the Venus study claim that the amounts of phosphine   
   detected in the Venusian atmosphere far exceeds the amounts that could   
   be produced this way.   
      
   > https://www.nature.com/articles/s41550-020-1174-4   
      
   This plus source data from two different observational mechanisms is what   
   makes all this very intriguing.   
      
   Dave   
      
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