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 sun is 330,330 times larger than the earth.
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At room temperature, the average air molecule travels at the speed of a rifle bullet.
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Iron weighs more after it rusts.
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There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
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