A single speck of dust is half way in size between a subatomic particle and the Earth.
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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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Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
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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.
5
If the chemical sodium is dropped into water it will immediately and violently explode.
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