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Cake day: February 26th, 2024

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  • Yeah, this one had me kind of excited. The atmospheres of Earth and Venus are, in fact, both quite aggressive, but Earth’s is very oxidative and somewhat acidic whereas for Venus, it’s the other way around. As a consequence, on Venus, stuff like carbohydrates would break down easily, especially in that kind of temperatures. As a consequence, life would have to be very different from Earth’s, and any search would have to account for that.
    As for how phosphine could be created on Venus, maybe something like this: 4 H2O + 4 SO2 + H3PO4 → PH3 + 4 H2SO4, which is likely endothermic. So there would have to be a very specific advantage for a life form to bother creating it.