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originally posted by: ketsuko
I've also seen the suggestion that as the Russians sent many probes to Venus, it's also just possible that microbes hitched a ride on them and found the upper atmosphere there hospitable. Thus, we colonized Venus without realizing it.
So Venusian tardigrades.
No known geological mechanism or non-biological chemical reaction produces it on our planet, although it is produced deep inside gas giants like Jupiter and Saturn where hydrogen is plentiful and the temperature and pressure extremely high.
The question would then be if it was always there and we just never looked.
Greaves is a radio astronomer who had worked in the ’80s at Hawaii's James Clerk Maxwell Telescope. In early 2017, she called up Jessica Dempsey, the telescope's site director, and asked if she could do something crazy. Then she presented her plan.
They have. They just never looked for phosphine before. Or do you think that they should just always look for "everything?" That's not really practical, looking for very small concentrations of a particular chemical. But it's probably going to be done more often now, for phosphine anyhow.
looked at the chemical composition of the atmosphere like that.