Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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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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Sound travels fifteen times faster through steel than through air.
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In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
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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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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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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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