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A very exciting discovery of phosphine (PH3) gas in the atmosphere of #Venus is keeping humans on the edge of their seats today. Does this mean there is evidence of life in the universe (other than on Earth)? #CarlSagan talked about it 53 years ago (almost to the day). [1/4]
#CarlSagan & Morowitz discussed #Venus in their @nature letter "Life in the Clouds of Venus?" 53 years ago: "WHILE the surface conditions of #Venus make the hypothesis of life there implausible, the clouds of Venus are a different story altogether." [2/4]https://www.nature.com/articles/2151259a0 …
In 1967 #CarlSagan wrote to @nature " The conditions in the lower clouds of #Venus resemble those on Earth more than any extraterrestrial environment now known." Today, 53 years later, more exciting evidence was found, supporting Sagan's idea. [3/4]pic.twitter.com/4v0ZjrNHit
Today's @NatureAstronomy paper brings us more evidence supporting #CarlSagan: "PH3 (phosphine) could originate from unknown photochemistry or geochemistry, or, by analogy with biological production of PH3 on Earth, from the presence of life." [4/4] #Venushttps://www.nature.com/articles/s41550-020-1174-4 …
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