If you remember, about a month ago came out a research in which, to explain the presence and sudden disappearance of methane on Mars, it used the phenomenon of “salting” and wind erosion of rocks (see https://phys.org/news/2019-07-methane-mars-mechanism-explanation.html).
Well, this new research disproves all that with lots of data in hand!
Another failed attempt to dismantle the hypothesis of biological origin.
As you can see, even in this case, the scientific community is far from unanimous and the question of methane remains unresolved!
Popular article: https://phys.org/news/2019-08-methane-mars-experts.html
Complete research in PDF downloadable for free: https://www.nature.com/articles/s41598-019-44616-2.pdf
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