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CU Boulder scientists found a python blood molecule that spikes 1,000-fold after meals and curbs appetite in mice, now the basis of a new startup.
A 454-gram Sahara meteorite carries pressure evidence of a Moon-sized protoplanet that vanished before Earth finished forming, a new study finds.
New 2025-2026 studies show Earth's solid iron inner core shifting shape, spinning unevenly, and hiding a distinct 650-kilometer inner layer.
The Perseid meteor shower starts this week and peaks Aug. 12 to 13 under a new moon, its clearest run in years and the same night...