During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
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Cold water weighs more than hot water.
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A cesium atom in an atomic clock beats over nine billion times a second.
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A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
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The Earth's atmosphere weighs about 5.5 quadrillion tons.
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