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Earth Early Earth’s belly held onto its water When the early Earth’s magma ocean crystallized 4.4 billion years ago, the deep mantle trapped an ocean’s worth of water, scientists say.

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Dec 8, 2025 · Health & Medicine GLP-1 drugs failed to slow Alzheimer’s in two big clinical trials Tantalizing results from small trials and anecdotes raised hopes that drugs like Ozempic could …

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