In zero gravity, a candle's flame is round and blue.
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Neanderthal man had a brain capacity 100cc larger than modern man's.
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A cesium atom in an atomic clock beats over nine billion times a second.
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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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Scientists aren't sure what color dinosaurs were.
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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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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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