In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
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Research indicates that plants grow healthier when they are stroked.
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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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There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
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In zero gravity, a candle's flame is round and blue.
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Nylon is made from coal and petroleum.
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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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