A hot topic: Radioactive decay is key ingredient behind Earth’s heat, research shows


Nearly half of the Earth‘s heat comes from the radioactive decay of materials inside, according to a large international research collaboration that includes a Kansas State University physicist. Glenn Horton-Smith, associate professor of physics, was…

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What keeps the Earth cooking?


Related images(click to enlarge) What spreads the sea floors and moves the continents? What melts iron in the outer core and enables the Earth‘s magnetic field? Heat. Geologists have used temperature measurements from more than…

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