Timeline for How is it thought that phosphine is synthesized by living organisms on Earth?
Current License: CC BY-SA 4.0
12 events
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| Sep 16, 2020 at 8:37 | comment | added | Chris H | @T.E.D. I'm sure that's discussed in Bains's new 103-page preprint | |
| Sep 16, 2020 at 5:38 | comment | added | Nilay Ghosh | @T.E.D. The atmosphere in Venus is mostly carbon dioxide. Only a trace amount of sulfur is found. Also, hydrogen was theorized to have present in relatively short supply in the Venusian atmosphere but most of them is lost to space with the remainder(trace) being bound up in sulfuric acid and hydrogen sulfide. Also, the Vesuvian clouds composing of sulfuric acid are formed in the upper atmosphere. Even if it rains, it evaporates around 25 km above the surface and thus not affecting the microbes present in the ground. But research is still going about the feasibility of this cycle on Venus. | |
| Sep 16, 2020 at 0:56 | comment | added | T.E.D. | I guess the reasonable follow-on question would be whether the process described there could feasibly operate in the sulfuric clouds of Venus. | |
| Sep 15, 2020 at 19:07 | history | edited | David | CC BY-SA 4.0 |
Added links with biochemical explanations for those who may be unfamiliar with them.
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| Sep 15, 2020 at 13:18 | comment | added | Chris H | It looks like a good read of Bains's related work would be of interest to the OP. Trivalent Phosphorus and Phosphines as Components of Biochemistry in Anoxic Environments is another that looks worthwhile (though I come to this from the physics side). According to the Nature Astronomy paper (Greaves et al) Bains has another paper on the way, but that's more on the Venusian side. | |
| Sep 15, 2020 at 9:16 | comment | added | David | @usernumber — That is a preprint of the Nature Astronomy paper, the final version of which is freely available, I believe. However, clearly some people have known about it for a while. | |
| Sep 15, 2020 at 9:05 | history | edited | David | CC BY-SA 4.0 |
General tightening up, explained the authors participation in both papers, substituted a larger image.
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| Sep 15, 2020 at 8:23 | comment | added | usernumber | The paper also appears to be on arXiv arxiv.org/abs/2009.06593 | |
| Sep 14, 2020 at 20:42 | history | edited | David | CC BY-SA 4.0 |
Further clarification
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| Sep 14, 2020 at 19:52 | vote | accept | dashnick | ||
| Sep 14, 2020 at 18:34 | history | edited | David | CC BY-SA 4.0 |
Added explanatory sentence
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| Sep 14, 2020 at 18:27 | history | answered | David | CC BY-SA 4.0 |