Marcus Chown

@marcuschown

Writer. Books include Tweeting the Universe, We Need to Talk About Kelvin, Quantum Theory Cannot Hurt You & Solar System for iPad

Body in Solar System that generates most heat, pound for pound, is not the Sun. It's Jupiter's volcanic pizza moon, Io.

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1622 days ago

Body in Solar System that generates most heat, pound for pound, is not the Sun. It's Jupiter's volcanic pizza moon, Io.

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