NASA's Perseverance rover confirmed macromolecular carbon in ancient Martian mudstones using Raman spectroscopy. The organic material was found just microns beneath the surface, a depth where radiation and chemical oxidants typically destroy such compounds.
While the carbon likely indicates past habitability, it does not prove life existed, as abiotic processes can create similar structures. The survival of these molecules near the surface suggests mineral shielding was key, offering a specific target for future preservation studies.
more: https://www.sciencedaily.com/releases/2026/11/261111005908.htm
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