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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Pumice is the only rock that floats on water.
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When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
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The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
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The bark of an older redwood tree is fireproof.
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
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