User:Robertinventor/Simple animals could live in Martian brines - Extended Interview with planetary scientist Vlada Stamenković: Difference between revisions

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===How could life use oxygen at such low temperatures?===
 
'''''(background information):''''' LifeEarth getsmicrobes slowerlive in the andslow slowerlane at lower temperatures to the point where individual microbes have lifetimes of millennia. Such life is hard to study. It's almost impossible to tell whether it is a) active and able to reproduce at those temperatures or b) active and not able to reproduce, or c) intermittently sometimes active and sometimes dormant. The reproduction can't be studied using cell counts. But the usual limit cited is -20&nbsp;°C<!-- see discussion in A new analysis of Mars "Special Regions" -->. That's well above the lowest temperatures studied in the paper which go down to -133&nbsp;°C.
 
# active and able to reproduce at those temperatures
# active and not able to reproduce, or
# intermittently sometimes active and sometimes dormant.
 
Reproduction of such slowly growing cells can't be studied using cell counts. But the usual limit cited is -20&nbsp;°C<!-- see discussion in A new analysis of Mars "Special Regions" -->. That's well above the lowest temperatures studied in the paper which go down to -133&nbsp;°C.
 
<!-- This para summarizes the Schulze-Makuch paper in the background information section -->