Phosphine Found in Brown Dwarfs, Stumping Scientists(phys.org)
phys.org
Phosphine Found in Brown Dwarfs, Stumping Scientists
https://phys.org/news/2025-10-mysterious-molecule-brown-dwarf-potential.html
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"On Earth, phosphine is only present due to life, and so phosphine has been explored extensively as a potential sign of life. So the potential detection on Venus was exciting stuff. ... Phosphine is found in the atmospheres of Jupiter and Saturn, and no one is proposing life exists in the clouds of these planets."