Scientists are now able to grow 'beating' heart tissue in a lab!
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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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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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The bark of an older redwood tree is fireproof.
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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 have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
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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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