Iron weighs more after it rusts.
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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.
5
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
According to studies, men change their minds two to three times more often than women.
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Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
German chemists made a replica of a trophy the size of one molecule.
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