(Image source: OurAmazingPlanet)
BY: STEVEN SPARKMAN
TRANSCRIPTION:
TRANSCRIPTION:
It’s a mystery that bothers planetary scientists. The planet we live on is dumping 44 terawatts of heat into space, but scientists aren’t sure where it’s all coming from. Now scientists in Japan say they’ve figured out about half of it.
International Business Times explains.
“We’re aware that heat drives our Earth -- from the planet’s core to its surface. Heat enables Earth’s magnetic field, spreads the seafloor and keeps continents on the move. … But where does this heat come from? According to recent research, radioactive decay supplies only about half the Earth’s heat, while primordial heat -- leftover from the planet’s formation -- accounts for the rest.”
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