Ancient Mars Lake Could Have Supported Life, or Could It?


This week the Mars rover Curiosity rover team announced that they have discovered evidence of past fresh waster in  Gale Crater. Specifically that the Rock called "John Kein" formed in fresh water. First of this data is not new but has been available months and they seem to be ignoring an aspect of the data that goes against habitability at least long-term habitability. Also no evidence of actual life or even organic compounds have been found, only compounds that life could use if present.


NASA/JPL-Caltech/GSFC

Now while the clays found in the area do indicate that the water in Gale Crater was initially fresh, the sulfur dioxide, and hydrogen sulfide which suggest past sulfuric acid. The amounts found suggest a concentrations of about 3% that would have resulted in a Ph of about 0.5, making it quite acidic. What seems to have happened is that the water was was originally fresh having erupted from underground  but it later became acidic as a result of fall out from the volcanic activity. This makes is a perfect fit to the Catastrophic Model of Martian geology. It seems that the folks at  JPL are so eager to find life on Mars that any hint a possible habitable puddle of water gets them excited.

References

Ancient Mars Lake Could Have Supported Life, Curiosity Rover Shows

The Rover Opportunity Discovers Evidence of Past Fresh Water on Mars

Curiosity Finds Evidence of Past Sulfuric Acid

 

 

 

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