The abundance of long-chain hydrocarbons in Gale crater mudstone, and iron phosphate and iron sulfide in Jezero crater mudstone supports the notion of at least bacteriological life on Mars.
It's a rehash of a 2025 result. They have a tiny ammount of organic stuff now and a new numerical model that predict a lot of organic stuff a long time ago. If the calculation is correct, it's probably a good indicator, but I'm suspictious after the infamous arsenic life paper https://en.wikipedia.org/wiki/GFAJ-1
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