Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
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Iron weighs more after it rusts.
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4.5 pounds of sunlight strike the Earth each day.
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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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In zero gravity, a candle's flame is round and blue.
16
If the chemical sodium is dropped into water it will immediately and violently explode.
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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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