Phosphine found in the atmoshpere of Venus may indicate the presence of life.

#1
Scientists have found evidence of phosphine in the atmoshpere of Venus which may indicate the presence of life.

This article is from the google cache, it was posted then withdrawn, possibly it was posted prematurely, the research report is being released tomorrow (Monday 9/14/2020).
https://webcache.googleusercontent.com/search?q=cache:dUWrpm80WHsJ:https://earthsky.org/?p=343883+

Has microbial life been found on Venus?​
Posted by Paul Scott Anderson in SPACE | September 12, 2020​
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The exciting findings come from scientists in the US and UK, at the Massachusetts Institute of Technology (MIT), Cardiff University, University of Manchester and others. Jane Greaves of Cardiff University lead the study.​
The new peer-reviewed research paper was published in Nature Astronomy today, September 14, 2020.​
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What did the researchers find?​
Simply put, a gas that shouldn’t be there, and on Earth is considered a conclusive biosignature: phosphine, a very stinky gas. As far as scientists know, there are only two ways to produce it, either artificially in a lab, or by certain kinds of microbes that live in oxygen-free environments. Since it is rather unlikely there any alien labs on Venus, that leaves microbes.​


 
#2
The full report is at the link:

https://www.nature.com/articles/s41550-020-1174-4

Published: 14 September 2020
Phosphine gas in the cloud decks of Venus​
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Abstract​
Measurements of trace gases in planetary atmospheres help us explore chemical conditions different to those on Earth. Our nearest neighbour, Venus, has cloud decks that are temperate but hyperacidic. Here we report the apparent presence of phosphine (PH3) gas in Venus’s atmosphere, where any phosphorus should be in oxidized forms. Single-line millimetre-waveband spectral detections (quality up to ~15σ) from the JCMT and ALMA telescopes have no other plausible identification. Atmospheric PH3 at ~20 ppb abundance is inferred. The presence of PH3 is unexplained after exhaustive study of steady-state chemistry and photochemical pathways, with no currently known abiotic production routes in Venus’s atmosphere, clouds, surface and subsurface, or from lightning, volcanic or meteoritic delivery. PH3 could originate from unknown photochemistry or geochemistry, or, by analogy with biological production of PH3 on Earth, from the presence of life. Other PH3 spectral features should be sought, while in situ cloud and surface sampling could examine sources of this gas.​
 
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