Many people would like to know if any form of life could survive anywhere in the atmosphere of Venus.

Researchers have simulated conditions on Mars and found that after a month some cyanobacteria were still alive and active ! (Reference)

Is it not important that researchers could also study if CO2 consuming bacteria could thrive in some regions of the atmosphere of Venus by simulating the conditions in those regions ?
Or has there been such research already ?

Nostoc commune,a species of Cyanobacterium, could be a good candidate for the harsh conditions that have to be simulated.

  • $\begingroup$ @Uwe Thank you for being so helpful. I've made my question more specific $\endgroup$ – Cornelisinspace Jan 31 '18 at 23:13
  • $\begingroup$ Your question is interesting, you might consider another edit. If you would like to ask about the possibility of bacteria in the atmosphere, that should be the title as well. Try to keep your question narrow and focused. You can always ask a new question based on answers you get here, but answers are more likely if the question is narrow and focused. $\endgroup$ – uhoh Feb 1 '18 at 0:19
  • $\begingroup$ @Uwe Thank you for your new susgestions, again i 've made some corrections. $\endgroup$ – Cornelisinspace Feb 1 '18 at 8:09
  • $\begingroup$ @Uwe But the main question stays: why has there been no simulations until now ! And i have to explain why those simulations could be worthwhile ! $\endgroup$ – Cornelisinspace Feb 1 '18 at 8:22
  • $\begingroup$ Great edits, your question looks much better! $\endgroup$ – uhoh Feb 1 '18 at 13:17

One issue is actually simulating the clouds. If you know and can reproduce the Martian soil chemistry, you have the "Martian soil" used in the referenced simulation. But to get or reproduce a piece of the Venusian clouds that would serve as this "soil" in a Venus simulation you have not only to match or sample the cloud chemistry, but also simulate the weather/hydrodynamic conditions that exist in the clouds. You may also need to explore simulated clouds at different altitudes. All told, your simulation would have to be more complex to design and carry out than the Martian one.

Moreover, for all the fascinating cloud chemistry we see on Venus, we are not yet at the point where Venusian cloud life is as likely as life on Mars. A key difference here is the known presence of organic material. Martian organic material, including methane and more complex compounds, is known to exist, providing an argument for the possibility of life and a motive for further study. Direct evidence for such organic chemistry on Venus is not present unless it would be very recent news.

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  • $\begingroup$ Thank you for this thorough answer. Simulating clouds at different altitudes would need adapting temperature ,pressure and sulfuric acid concentration. That alone would not be too complex. And the simulating would not be for evidence of organic chemistry but for testing if some existing bacteria could thrive in such conditions, possibly with adding some fertilizer. $\endgroup$ – Cornelisinspace Aug 18 '19 at 17:14

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