Marcus Chown

@marcuschown

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

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99.9% of photons in the Universe are in the left-over heat of the big bang; only 0.1% are light from stars and galaxies

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760 days ago

99.9% of photons in the Universe are in the left-over heat of the big bang; only 0.1% are light from stars and galaxies

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