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A thorium-229 optical nuclear clock with feedback loop
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Not afraid of ghosts: Curiosity and fearlessness apparent in German shepherd genes
New genetic research reveals that German Shepherds possess distinct traits of curiosity and fearlessness linked to breeding.
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Fingerprint vanished 2.5 billion years ago marks turning point in Earth’s geological history
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Accidental discovery enables room-temperature recrystallization of molybdenum
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This supernova impostor baffled astronomers for 15 years — until they found a hidden black hole feeding on an unstable star
A giant star faked 27 supernovas over 15 years before NASA's Chandra X-Ray Observatory uncovered a hidden black hole or neutron star feeding on it.
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Who yelled at Pete Hegseth at Arlington National Cemetery? The quiz knows
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SpaceX's giant rocket may leave NASA in the dust
SpaceX is planning a test launch of Starship, its massive new rocket, as questions grow about the future of its older Falcon 9.