Aluminum used to be more valuable than gold!
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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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In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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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.
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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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A ball of glass will bounce higher than a ball made of rubber.
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