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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Diamonds can be shattered with a hammer.
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In zero gravity, a candle's flame is round and blue.
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Hot water can freeze faster than cold water.
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Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
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