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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In zero gravity, a candle's flame is round and blue.
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Iron weighs more after it rusts.
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The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
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Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
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0.3% of solar energy from the Sahara is enough to power the whole of Europe.
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Pure water (H2O) does not conduct electricity on its own.
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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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