In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
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The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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4.5 pounds of sunlight strike the Earth each day.
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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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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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Pumice is the only rock that floats on water.
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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